<?php
/**
 * PHPMailer - PHP email creation and transport class.
 * PHP Version 5
 * @package PHPMailer
 * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 * @author Brent R. Matzelle (original founder)
 * @copyright 2012 - 2014 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 * @note This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 */

/**
 * PHPMailer - PHP email creation and transport class.
 * 
 * @package PHPMailer
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 * @author Brent R. Matzelle (original founder)
 */
class PHPMailer {
	/**
	 * The PHPMailer Version number.
	 * @type string
	 */
	public $Version = '5.2.7';
	
	/**
	 * Email priority.
	 * Options: 1 = High, 3 = Normal, 5 = low.
	 * @type int
	 */
	public $Priority = 3;
	
	/**
	 * The character set of the message.
	 * @type string
	 */
	public $CharSet = 'iso-8859-1';
	
	/**
	 * The MIME Content-type of the message.
	 * @type string
	 */
	public $ContentType = 'text/plain';
	
	/**
	 * The message encoding.
	 * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".
	 * @type string
	 */
	public $Encoding = '8bit';
	
	/**
	 * Holds the most recent mailer error message.
	 * @type string
	 */
	public $ErrorInfo = '';
	
	/**
	 * The From email address for the message.
	 * @type string
	 */
	public $From = 'root@localhost';
	
	/**
	 * The From name of the message.
	 * @type string
	 */
	public $FromName = 'Root User';
	
	/**
	 * The Sender email (Return-Path) of the message.
	 * If not empty, will be sent via -f to sendmail or as 'MAIL FROM' in smtp mode.
	 * @type string
	 */
	public $Sender = '';
	
	/**
	 * The Return-Path of the message.
	 * If empty, it will be set to either From or Sender.
	 * @type string
	 * 
	 * @deprecated Email senders should never set a return-path header;
	 *             it's the receiver's job (RFC5321 section 4.4), so this no longer does anything.
	 * @link https://tools.ietf.org/html/rfc5321#section-4.4 RFC5321 reference
	 */
	public $ReturnPath = '';
	
	/**
	 * The Subject of the message.
	 * @type string
	 */
	public $Subject = '';
	
	/**
	 * An HTML or plain text message body.
	 * If HTML then call isHTML(true).
	 * @type string
	 */
	public $Body = '';
	
	/**
	 * The plain-text message body.
	 * This body can be read by mail clients that do not have HTML email
	 * capability such as mutt & Eudora.
	 * Clients that can read HTML will view the normal Body.
	 * @type string
	 */
	public $AltBody = '';
	
	/**
	 * An iCal message part body.
	 * Only supported in simple alt or alt_inline message types
	 * To generate iCal events, use the bundled extras/EasyPeasyICS.php class or iCalcreator
	 * 
	 * @link http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
	 * @link http://kigkonsult.se/iCalcreator/
	 *       @type string
	 */
	public $Ical = '';
	
	/**
	 * The complete compiled MIME message body.
	 * 
	 * @access protected
	 *         @type string
	 */
	protected $MIMEBody = '';
	
	/**
	 * The complete compiled MIME message headers.
	 * @type string
	 * 
	 * @access protected
	 */
	protected $MIMEHeader = '';
	
	/**
	 * Extra headers that createHeader() doesn't fold in.
	 * @type string
	 * 
	 * @access protected
	 */
	protected $mailHeader = '';
	
	/**
	 * Word-wrap the message body to this number of chars.
	 * @type int
	 */
	public $WordWrap = 0;
	
	/**
	 * Which method to use to send mail.
	 * Options: "mail", "sendmail", or "smtp".
	 * @type string
	 */
	public $Mailer = 'mail';
	
	/**
	 * The path to the sendmail program.
	 * @type string
	 */
	public $Sendmail = '/usr/sbin/sendmail';
	
	/**
	 * Whether mail() uses a fully sendmail-compatible MTA.
	 * One which supports sendmail's "-oi -f" options.
	 * @type bool
	 */
	public $UseSendmailOptions = true;
	
	/**
	 * Path to PHPMailer plugins.
	 * Useful if the SMTP class is not in the PHP include path.
	 * @type string
	 * 
	 * @deprecated Should not be needed now there is an autoloader.
	 */
	public $PluginDir = '';
	
	/**
	 * The email address that a reading confirmation should be sent to.
	 * @type string
	 */
	public $ConfirmReadingTo = '';
	
	/**
	 * The hostname to use in Message-Id and Received headers
	 * and as default HELO string.
	 * If empty, the value returned
	 * by SERVER_NAME is used or 'localhost.localdomain'.
	 * @type string
	 */
	public $Hostname = '';
	
	/**
	 * An ID to be used in the Message-Id header.
	 * If empty, a unique id will be generated.
	 * @type string
	 */
	public $MessageID = '';
	
	/**
	 * The message Date to be used in the Date header.
	 * If empty, the current date will be added.
	 * @type string
	 */
	public $MessageDate = '';
	
	/**
	 * SMTP hosts.
	 * Either a single hostname or multiple semicolon-delimited hostnames.
	 * You can also specify a different port
	 * for each host by using this format: [hostname:port]
	 * (e.g. "smtp1.example.com:25;smtp2.example.com").
	 * Hosts will be tried in order.
	 * @type string
	 */
	public $Host = 'localhost';
	
	/**
	 * The default SMTP server port.
	 * @type int
	 * 
	 * @todo Why is this needed when the SMTP class takes care of it?
	 */
	public $Port = 25;
	
	/**
	 * The SMTP HELO of the message.
	 * Default is $Hostname.
	 * @type string
	 * 
	 * @see PHPMailer::$Hostname
	 */
	public $Helo = '';
	
	/**
	 * The secure connection prefix.
	 * Options: "", "ssl" or "tls"
	 * @type string
	 */
	public $SMTPSecure = '';
	
	/**
	 * Whether to use SMTP authentication.
	 * Uses the Username and Password properties.
	 * @type bool
	 * 
	 * @see PHPMailer::$Username
	 * @see PHPMailer::$Password
	 */
	public $SMTPAuth = false;
	
	/**
	 * SMTP username.
	 * @type string
	 */
	public $Username = '';
	
	/**
	 * SMTP password.
	 * @type string
	 */
	public $Password = '';
	
	/**
	 * SMTP auth type.
	 * Options are LOGIN (default), PLAIN, NTLM, CRAM-MD5
	 * @type string
	 */
	public $AuthType = '';
	
	/**
	 * SMTP realm.
	 * Used for NTLM auth
	 * @type string
	 */
	public $Realm = '';
	
	/**
	 * SMTP workstation.
	 * Used for NTLM auth
	 * @type string
	 */
	public $Workstation = '';
	
	/**
	 * The SMTP server timeout in seconds.
	 * @type int
	 */
	public $Timeout = 10;
	
	/**
	 * SMTP class debug output mode.
	 * Options:
	 * 0: no output
	 * 1: commands
	 * 2: data and commands
	 * 3: as 2 plus connection status
	 * 4: low level data output
	 * @type int
	 * 
	 * @see SMTP::$do_debug
	 */
	public $SMTPDebug = 0;
	
	/**
	 * How to handle debug output.
	 * Options:
	 * 'echo': Output plain-text as-is, appropriate for CLI
	 * 'html': Output escaped, line breaks converted to <br>, appropriate for browser output
	 * 'error_log': Output to error log as configured in php.ini
	 * @type string
	 * 
	 * @see SMTP::$Debugoutput
	 */
	public $Debugoutput = 'echo';
	
	/**
	 * Whether to keep SMTP connection open after each message.
	 * If this is set to true then to close the connection
	 * requires an explicit call to smtpClose().
	 * @type bool
	 */
	public $SMTPKeepAlive = false;
	
	/**
	 * Whether to split multiple to addresses into multiple messages
	 * or send them all in one message.
	 * @type bool
	 */
	public $SingleTo = false;
	
	/**
	 * Storage for addresses when SingleTo is enabled.
	 * @type array
	 * 
	 * @todo This should really not be public
	 */
	public $SingleToArray = array ();
	
	/**
	 * Whether to generate VERP addresses on send.
	 * Only applicable when sending via SMTP.
	 * 
	 * @link http://en.wikipedia.org/wiki/Variable_envelope_return_path
	 * @link http://www.postfix.org/VERP_README.html Postfix VERP info
	 *       @type bool
	 */
	public $do_verp = false;
	
	/**
	 * Whether to allow sending messages with an empty body.
	 * @type bool
	 */
	public $AllowEmpty = false;
	
	/**
	 * The default line ending.
	 * @note The default remains "\n". We force CRLF where we know
	 * it must be used via self::CRLF.
	 * @type string
	 */
	public $LE = "\n";
	
	/**
	 * DKIM selector.
	 * @type string
	 */
	public $DKIM_selector = '';
	
	/**
	 * DKIM Identity.
	 * Usually the email address used as the source of the email
	 * @type string
	 */
	public $DKIM_identity = '';
	
	/**
	 * DKIM passphrase.
	 * Used if your key is encrypted.
	 * @type string
	 */
	public $DKIM_passphrase = '';
	
	/**
	 * DKIM signing domain name.
	 * 
	 * @example 'example.com'
	 *          @type string
	 */
	public $DKIM_domain = '';
	
	/**
	 * DKIM private key file path.
	 * @type string
	 */
	public $DKIM_private = '';
	
	/**
	 * Callback Action function name.
	 *
	 * The function that handles the result of the send email action.
	 * It is called out by send() for each email sent.
	 *
	 * Value can be any php callable: http://www.php.net/is_callable
	 *
	 * Parameters:
	 * bool $result result of the send action
	 * string $to email address of the recipient
	 * string $cc cc email addresses
	 * string $bcc bcc email addresses
	 * string $subject the subject
	 * string $body the email body
	 * string $from email address of sender
	 * @type string
	 */
	public $action_function = '';
	
	/**
	 * What to use in the X-Mailer header.
	 * Options: null for default, whitespace for none, or a string to use
	 * @type string
	 */
	public $XMailer = '';
	
	/**
	 * An instance of the SMTP sender class.
	 * @type SMTP
	 * 
	 * @access protected
	 */
	protected $smtp = null;
	
	/**
	 * The array of 'to' addresses.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $to = array ();
	
	/**
	 * The array of 'cc' addresses.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $cc = array ();
	
	/**
	 * The array of 'bcc' addresses.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $bcc = array ();
	
	/**
	 * The array of reply-to names and addresses.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $ReplyTo = array ();
	
	/**
	 * An array of all kinds of addresses.
	 * Includes all of $to, $cc, $bcc, $replyto
	 * @type array
	 * 
	 * @access protected
	 */
	protected $all_recipients = array ();
	
	/**
	 * The array of attachments.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $attachment = array ();
	
	/**
	 * The array of custom headers.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $CustomHeader = array ();
	
	/**
	 * The most recent Message-ID (including angular brackets).
	 * @type string
	 * 
	 * @access protected
	 */
	protected $lastMessageID = '';
	
	/**
	 * The message's MIME type.
	 * @type string
	 * 
	 * @access protected
	 */
	protected $message_type = '';
	
	/**
	 * The array of MIME boundary strings.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $boundary = array ();
	
	/**
	 * The array of available languages.
	 * @type array
	 * 
	 * @access protected
	 */
	protected $language = array ();
	
	/**
	 * The number of errors encountered.
	 * @type integer
	 * 
	 * @access protected
	 */
	protected $error_count = 0;
	
	/**
	 * The S/MIME certificate file path.
	 * @type string
	 * 
	 * @access protected
	 */
	protected $sign_cert_file = '';
	
	/**
	 * The S/MIME key file path.
	 * @type string
	 * 
	 * @access protected
	 */
	protected $sign_key_file = '';
	
	/**
	 * The S/MIME password for the key.
	 * Used only if the key is encrypted.
	 * @type string
	 * 
	 * @access protected
	 */
	protected $sign_key_pass = '';
	
	/**
	 * Whether to throw exceptions for errors.
	 * @type bool
	 * 
	 * @access protected
	 */
	protected $exceptions = false;
	
	/**
	 * Error severity: message only, continue processing
	 */
	const STOP_MESSAGE = 0;
	
	/**
	 * Error severity: message, likely ok to continue processing
	 */
	const STOP_CONTINUE = 1;
	
	/**
	 * Error severity: message, plus full stop, critical error reached
	 */
	const STOP_CRITICAL = 2;
	
	/**
	 * SMTP RFC standard line ending
	 */
	const CRLF = "\r\n";
	
	/**
	 * Constructor
	 * 
	 * @param bool $exceptions
	 *        	Should we throw external exceptions?
	 */
	public function __construct($exceptions = false) {
		if (version_compare ( PHP_VERSION, '5.0.0', '<' )) {
			exit ( "Sorry, PHPMailer will only run on PHP version 5 or greater!\n" );
		}
		$this->exceptions = ($exceptions == true);
		// Make sure our autoloader is loaded
		/*
		 * if (version_compare(PHP_VERSION, '5.1.2', '>=')) { $autoload = spl_autoload_functions(); if ($autoload === false or !in_array('PHPMailerAutoload', $autoload)) { require 'PHPMailerAutoload.php'; } }
		 */
	}
	
	/**
	 * Destructor.
	 */
	public function __destruct() {
		if ($this->Mailer == 'smtp') { // close any open SMTP connection nicely
			$this->smtpClose ();
		}
	}
	
	/**
	 * Call mail() in a safe_mode-aware fashion.
	 * Also, unless sendmail_path points to sendmail (or something that
	 * claims to be sendmail), don't pass params (not a perfect fix,
	 * but it will do)
	 * 
	 * @param string $to
	 *        	To
	 * @param string $subject
	 *        	Subject
	 * @param string $body
	 *        	Message Body
	 * @param string $header
	 *        	Additional Header(s)
	 * @param string $params
	 *        	Params
	 * @access private
	 * @return bool
	 */
	private function mailPassthru($to, $subject, $body, $header, $params) {
		// Check overloading of mail function to avoid double-encoding
		if (ini_get ( 'mbstring.func_overload' ) & 1) {
			$subject = $this->secureHeader ( $subject );
		} else {
			$subject = $this->encodeHeader ( $this->secureHeader ( $subject ) );
		}
		if (ini_get ( 'safe_mode' ) || ! ($this->UseSendmailOptions)) {
			$result = @mail ( $to, $subject, $body, $header );
		} else {
			$result = @mail ( $to, $subject, $body, $header, $params );
		}
		return $result;
	}
	
	/**
	 * Output debugging info via user-defined method.
	 * Only if debug output is enabled.
	 * 
	 * @see PHPMailer::$Debugoutput
	 * @see PHPMailer::$SMTPDebug
	 * @param string $str        	
	 */
	protected function edebug($str) {
		if (! $this->SMTPDebug) {
			return;
		}
		switch ($this->Debugoutput) {
			case 'error_log' :
				error_log ( $str );
				break;
			case 'html' :
				// Cleans up output a bit for a better looking display that's HTML-safe
				echo htmlentities ( preg_replace ( '/[\r\n]+/', '', $str ), ENT_QUOTES, $this->CharSet ) . "<br>\n";
				break;
			case 'echo' :
			default :
				echo $str . "\n";
		}
	}
	
	/**
	 * Sets message type to HTML or plain.
	 * 
	 * @param bool $ishtml
	 *        	True for HTML mode.
	 * @return void
	 */
	public function isHTML($ishtml = true) {
		if ($ishtml) {
			$this->ContentType = 'text/html';
		} else {
			$this->ContentType = 'text/plain';
		}
	}
	
	/**
	 * Send messages using SMTP.
	 * 
	 * @return void
	 */
	public function isSMTP() {
		$this->Mailer = 'smtp';
	}
	
	/**
	 * Send messages using PHP's mail() function.
	 * 
	 * @return void
	 */
	public function isMail() {
		$this->Mailer = 'mail';
	}
	
	/**
	 * Send messages using $Sendmail.
	 * 
	 * @return void
	 */
	public function isSendmail() {
		if (! stristr ( ini_get ( 'sendmail_path' ), 'sendmail' )) {
			$this->Sendmail = '/usr/sbin/sendmail';
		}
		$this->Mailer = 'sendmail';
	}
	
	/**
	 * Send messages using qmail.
	 * 
	 * @return void
	 */
	public function isQmail() {
		if (! stristr ( ini_get ( 'sendmail_path' ), 'qmail' )) {
			$this->Sendmail = '/var/qmail/bin/qmail-inject';
		}
		$this->Mailer = 'qmail';
	}
	
	/**
	 * Add a "To" address.
	 * 
	 * @param string $address        	
	 * @param string $name        	
	 * @return bool true on success, false if address already used
	 */
	public function addAddress($address, $name = '') {
		return $this->addAnAddress ( 'to', $address, $name );
	}
	
	/**
	 * Add a "CC" address.
	 * @note: This function works with the SMTP mailer on win32, not with the "mail" mailer.
	 * 
	 * @param string $address        	
	 * @param string $name        	
	 * @return bool true on success, false if address already used
	 */
	public function addCC($address, $name = '') {
		return $this->addAnAddress ( 'cc', $address, $name );
	}
	
	/**
	 * Add a "BCC" address.
	 * @note: This function works with the SMTP mailer on win32, not with the "mail" mailer.
	 * 
	 * @param string $address        	
	 * @param string $name        	
	 * @return bool true on success, false if address already used
	 */
	public function addBCC($address, $name = '') {
		return $this->addAnAddress ( 'bcc', $address, $name );
	}
	
	/**
	 * Add a "Reply-to" address.
	 * 
	 * @param string $address        	
	 * @param string $name        	
	 * @return bool
	 */
	public function addReplyTo($address, $name = '') {
		return $this->addAnAddress ( 'Reply-To', $address, $name );
	}
	
	/**
	 * Add an address to one of the recipient arrays.
	 * Addresses that have been added already return false, but do not throw exceptions
	 * 
	 * @param string $kind
	 *        	One of 'to', 'cc', 'bcc', 'ReplyTo'
	 * @param string $address
	 *        	The email address to send to
	 * @param string $name        	
	 * @throws phpmailerException
	 * @return bool true on success, false if address already used or invalid in some way
	 * @access protected
	 */
	protected function addAnAddress($kind, $address, $name = '') {
		if (! preg_match ( '/^(to|cc|bcc|Reply-To)$/', $kind )) {
			$this->setError ( $this->lang ( 'Invalid recipient array' ) . ': ' . $kind );
			$this->edebug ( $this->lang ( 'Invalid recipient array' ) . ': ' . $kind );
			if ($this->exceptions) {
				throw new phpmailerException ( 'Invalid recipient array: ' . $kind );
			}
			return false;
		}
		$address = trim ( $address );
		$name = trim ( preg_replace ( '/[\r\n]+/', '', $name ) ); // Strip breaks and trim
		if (! $this->validateAddress ( $address )) {
			$this->setError ( $this->lang ( 'invalid_address' ) . ': ' . $address );
			$this->edebug ( $this->lang ( 'invalid_address' ) . ': ' . $address );
			if ($this->exceptions) {
				throw new phpmailerException ( $this->lang ( 'invalid_address' ) . ': ' . $address );
			}
			return false;
		}
		if ($kind != 'Reply-To') {
			if (! isset ( $this->all_recipients [strtolower ( $address )] )) {
				array_push ( $this->$kind, array (
						$address,
						$name 
				) );
				$this->all_recipients [strtolower ( $address )] = true;
				return true;
			}
		} else {
			if (! array_key_exists ( strtolower ( $address ), $this->ReplyTo )) {
				$this->ReplyTo [strtolower ( $address )] = array (
						$address,
						$name 
				);
				return true;
			}
		}
		return false;
	}
	
	/**
	 * Set the From and FromName properties.
	 * 
	 * @param string $address        	
	 * @param string $name        	
	 * @param bool $auto
	 *        	Whether to also set the Sender address, defaults to true
	 * @throws phpmailerException
	 * @return bool
	 */
	public function setFrom($address, $name = '', $auto = true) {
		$address = trim ( $address );
		$name = trim ( preg_replace ( '/[\r\n]+/', '', $name ) ); // Strip breaks and trim
		if (! $this->validateAddress ( $address )) {
			$this->setError ( $this->lang ( 'invalid_address' ) . ': ' . $address );
			$this->edebug ( $this->lang ( 'invalid_address' ) . ': ' . $address );
			if ($this->exceptions) {
				throw new phpmailerException ( $this->lang ( 'invalid_address' ) . ': ' . $address );
			}
			return false;
		}
		$this->From = $address;
		$this->FromName = $name;
		if ($auto) {
			if (empty ( $this->Sender )) {
				$this->Sender = $address;
			}
		}
		return true;
	}
	
	/**
	 * Return the Message-ID header of the last email.
	 * Technically this is the value from the last time the headers were created,
	 * but it's also the message ID of the last sent message except in
	 * pathological cases.
	 * 
	 * @return string
	 */
	public function getLastMessageID() {
		return $this->lastMessageID;
	}
	
	/**
	 * Check that a string looks like an email address.
	 * 
	 * @param string $address
	 *        	The email address to check
	 * @param string $patternselect
	 *        	A selector for the validation pattern to use :
	 *        	* `auto` Pick strictest one automatically;
	 *        	* `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0, PHP >= 5.3.2, 5.2.14;
	 *        	* `pcre` Use old PCRE implementation;
	 *        	* `php` Use PHP built-in FILTER_VALIDATE_EMAIL; same as pcre8 but does not allow 'dotless' domains;
	 *        	* `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements.
	 *        	* `noregex` Don't use a regex: super fast, really dumb.
	 * @return bool
	 * @static
	 *
	 * @access public
	 */
	public static function validateAddress($address, $patternselect = 'auto') {
		if ($patternselect == 'auto') {
			if (defined ( 'PCRE_VERSION' )) { // Check this constant so it works when extension_loaded() is disabled
				if (version_compare ( PCRE_VERSION, '8.0' ) >= 0) {
					$patternselect = 'pcre8';
				} else {
					$patternselect = 'pcre';
				}
			} else {
				// Filter_var appeared in PHP 5.2.0 and does not require the PCRE extension
				if (version_compare ( PHP_VERSION, '5.2.0' ) >= 0) {
					$patternselect = 'php';
				} else {
					$patternselect = 'noregex';
				}
			}
		}
		switch ($patternselect) {
			case 'pcre8' :
				/**
				 * Uses the same RFC5322 regex on which FILTER_VALIDATE_EMAIL is based, but allows dotless domains.
				 * 
				 * @link http://squiloople.com/2009/12/20/email-address-validation/
				 * @copyright 2009-2010 Michael Rushton
				 *            Feel free to use and redistribute this code. But please keep this copyright notice.
				 */
				return ( bool ) preg_match ( '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' . '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' . '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' . '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' . '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' . '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' . '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' . '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' . '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD', $address );
				break;
			case 'pcre' :
				// An older regex that doesn't need a recent PCRE
				return ( bool ) preg_match ( '/^(?!(?>"?(?>\\\[ -~]|[^"])"?){255,})(?!(?>"?(?>\\\[ -~]|[^"])"?){65,}@)(?>' . '[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*")' . '(?>\.(?>[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*"))*' . '@(?>(?![a-z0-9-]{64,})(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)(?>\.(?![a-z0-9-]{64,})' . '(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)){0,126}|\[(?:(?>IPv6:(?>(?>[a-f0-9]{1,4})(?>:' . '[a-f0-9]{1,4}){7}|(?!(?:.*[a-f0-9][:\]]){8,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?' . '::(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?))|(?>(?>IPv6:(?>[a-f0-9]{1,4}(?>:' . '[a-f0-9]{1,4}){5}:|(?!(?:.*[a-f0-9]:){6,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4})?' . '::(?>(?:[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4}):)?))?(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}' . '|[1-9]?[0-9])(?>\.(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}))\])$/isD', $address );
				break;
			case 'html5' :
				/**
				 * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements.
				 * 
				 * @link http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email)
				 */
				return '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])' . '?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD';
				break;
			case 'php' :
			default :
				return ( bool ) filter_var ( $address, FILTER_VALIDATE_EMAIL );
				break;
			case 'noregex' :
				// No PCRE! Do something _very_ approximate!
				// Check the address is 3 chars or longer and contains an @ that's not the first or last char
				return (strlen ( $address ) >= 3 and strpos ( $address, '@' ) >= 1 and strpos ( $address, '@' ) != strlen ( $address ) - 1);
				break;
		}
	}
	
	/**
	 * Create a message and send it.
	 * Uses the sending method specified by $Mailer.
	 * 
	 * @throws phpmailerException
	 * @return bool false on error - See the ErrorInfo property for details of the error.
	 */
	public function send() {
		try {
			if (! $this->preSend ()) {
				return false;
			}
			return $this->postSend ();
		} catch ( phpmailerException $exc ) {
			$this->mailHeader = '';
			$this->setError ( $exc->getMessage () );
			if ($this->exceptions) {
				throw $exc;
			}
			return false;
		}
	}
	
	/**
	 * Prepare a message for sending.
	 * 
	 * @throws phpmailerException
	 * @return bool
	 */
	public function preSend() {
		try {
			$this->mailHeader = "";
			if ((count ( $this->to ) + count ( $this->cc ) + count ( $this->bcc )) < 1) {
				throw new phpmailerException ( $this->lang ( 'provide_address' ), self::STOP_CRITICAL );
			}
			
			// Set whether the message is multipart/alternative
			if (! empty ( $this->AltBody )) {
				$this->ContentType = 'multipart/alternative';
			}
			
			$this->error_count = 0; // reset errors
			$this->setMessageType ();
			// Refuse to send an empty message unless we are specifically allowing it
			if (! $this->AllowEmpty and empty ( $this->Body )) {
				throw new phpmailerException ( $this->lang ( 'empty_message' ), self::STOP_CRITICAL );
			}
			
			$this->MIMEHeader = $this->createHeader ();
			$this->MIMEBody = $this->createBody ();
			
			// To capture the complete message when using mail(), create
			// an extra header list which createHeader() doesn't fold in
			if ($this->Mailer == 'mail') {
				if (count ( $this->to ) > 0) {
					$this->mailHeader .= $this->addrAppend ( "To", $this->to );
				} else {
					$this->mailHeader .= $this->headerLine ( "To", "undisclosed-recipients:;" );
				}
				$this->mailHeader .= $this->headerLine ( 'Subject', $this->encodeHeader ( $this->secureHeader ( trim ( $this->Subject ) ) ) );
			}
			
			// Sign with DKIM if enabled
			if (! empty ( $this->DKIM_domain ) && ! empty ( $this->DKIM_private ) && ! empty ( $this->DKIM_selector ) && ! empty ( $this->DKIM_domain ) && file_exists ( $this->DKIM_private )) {
				$header_dkim = $this->DKIM_Add ( $this->MIMEHeader . $this->mailHeader, $this->encodeHeader ( $this->secureHeader ( $this->Subject ) ), $this->MIMEBody );
				$this->MIMEHeader = rtrim ( $this->MIMEHeader, "\r\n " ) . self::CRLF . str_replace ( "\r\n", "\n", $header_dkim ) . self::CRLF;
			}
			return true;
		} catch ( phpmailerException $exc ) {
			$this->setError ( $exc->getMessage () );
			if ($this->exceptions) {
				throw $exc;
			}
			return false;
		}
	}
	
	/**
	 * Actually send a message.
	 * Send the email via the selected mechanism
	 * 
	 * @throws phpmailerException
	 * @return bool
	 */
	public function postSend() {
		try {
			// Choose the mailer and send through it
			switch ($this->Mailer) {
				case 'sendmail' :
				case 'qmail' :
					return $this->sendmailSend ( $this->MIMEHeader, $this->MIMEBody );
				case 'smtp' :
					return $this->smtpSend ( $this->MIMEHeader, $this->MIMEBody );
				case 'mail' :
					return $this->mailSend ( $this->MIMEHeader, $this->MIMEBody );
				default :
					$sendMethod = $this->Mailer . 'Send';
					if (method_exists ( $this, $sendMethod )) {
						return $this->$sendMethod ( $this->MIMEHeader, $this->MIMEBody );
					}
					
					return $this->mailSend ( $this->MIMEHeader, $this->MIMEBody );
			}
		} catch ( phpmailerException $exc ) {
			$this->setError ( $exc->getMessage () );
			$this->edebug ( $exc->getMessage () );
			if ($this->exceptions) {
				throw $exc;
			}
		}
		return false;
	}
	
	/**
	 * Send mail using the $Sendmail program.
	 * 
	 * @param string $header
	 *        	The message headers
	 * @param string $body
	 *        	The message body
	 * @see PHPMailer::$Sendmail
	 * @throws phpmailerException
	 * @access protected
	 * @return bool
	 */
	protected function sendmailSend($header, $body) {
		if ($this->Sender != '') {
			if ($this->Mailer == 'qmail') {
				$sendmail = sprintf ( "%s -f%s", escapeshellcmd ( $this->Sendmail ), escapeshellarg ( $this->Sender ) );
			} else {
				$sendmail = sprintf ( "%s -oi -f%s -t", escapeshellcmd ( $this->Sendmail ), escapeshellarg ( $this->Sender ) );
			}
		} else {
			if ($this->Mailer == 'qmail') {
				$sendmail = sprintf ( "%s", escapeshellcmd ( $this->Sendmail ) );
			} else {
				$sendmail = sprintf ( "%s -oi -t", escapeshellcmd ( $this->Sendmail ) );
			}
		}
		if ($this->SingleTo === true) {
			foreach ( $this->SingleToArray as $val ) {
				if (! @$mail = popen ( $sendmail, 'w' )) {
					throw new phpmailerException ( $this->lang ( 'execute' ) . $this->Sendmail, self::STOP_CRITICAL );
				}
				fputs ( $mail, "To: " . $val . "\n" );
				fputs ( $mail, $header );
				fputs ( $mail, $body );
				$result = pclose ( $mail );
				// implement call back function if it exists
				$isSent = ($result == 0) ? 1 : 0;
				$this->doCallback ( $isSent, $val, $this->cc, $this->bcc, $this->Subject, $body, $this->From );
				if ($result != 0) {
					throw new phpmailerException ( $this->lang ( 'execute' ) . $this->Sendmail, self::STOP_CRITICAL );
				}
			}
		} else {
			if (! @$mail = popen ( $sendmail, 'w' )) {
				throw new phpmailerException ( $this->lang ( 'execute' ) . $this->Sendmail, self::STOP_CRITICAL );
			}
			fputs ( $mail, $header );
			fputs ( $mail, $body );
			$result = pclose ( $mail );
			// implement call back function if it exists
			$isSent = ($result == 0) ? 1 : 0;
			$this->doCallback ( $isSent, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From );
			if ($result != 0) {
				throw new phpmailerException ( $this->lang ( 'execute' ) . $this->Sendmail, self::STOP_CRITICAL );
			}
		}
		return true;
	}
	
	/**
	 * Send mail using the PHP mail() function.
	 * 
	 * @param string $header
	 *        	The message headers
	 * @param string $body
	 *        	The message body
	 * @link http://www.php.net/manual/en/book.mail.php
	 * @throws phpmailerException
	 * @access protected
	 * @return bool
	 */
	protected function mailSend($header, $body) {
		$toArr = array ();
		foreach ( $this->to as $toaddr ) {
			$toArr [] = $this->addrFormat ( $toaddr );
		}
		$to = implode ( ', ', $toArr );
		
		if (empty ( $this->Sender )) {
			$params = " ";
		} else {
			$params = sprintf ( "-f%s", $this->Sender );
		}
		if ($this->Sender != '' and ! ini_get ( 'safe_mode' )) {
			$old_from = ini_get ( 'sendmail_from' );
			ini_set ( 'sendmail_from', $this->Sender );
		}
		$result = false;
		if ($this->SingleTo === true && count ( $toArr ) > 1) {
			foreach ( $toArr as $val ) {
				$result = $this->mailPassthru ( $val, $this->Subject, $body, $header, $params );
				// implement call back function if it exists
				$isSent = ($result == 1) ? 1 : 0;
				$this->doCallback ( $isSent, $val, $this->cc, $this->bcc, $this->Subject, $body, $this->From );
			}
		} else {
			$result = $this->mailPassthru ( $to, $this->Subject, $body, $header, $params );
			// implement call back function if it exists
			$isSent = ($result == 1) ? 1 : 0;
			$this->doCallback ( $isSent, $to, $this->cc, $this->bcc, $this->Subject, $body, $this->From );
		}
		if (isset ( $old_from )) {
			ini_set ( 'sendmail_from', $old_from );
		}
		if (! $result) {
			throw new phpmailerException ( $this->lang ( 'instantiate' ), self::STOP_CRITICAL );
		}
		return true;
	}
	
	/**
	 * Get an instance to use for SMTP operations.
	 * Override this function to load your own SMTP implementation
	 * 
	 * @return SMTP
	 */
	public function getSMTPInstance() {
		if (! is_object ( $this->smtp )) {
			$this->smtp = new SMTP ();
		}
		return $this->smtp;
	}
	
	/**
	 * Send mail via SMTP.
	 * Returns false if there is a bad MAIL FROM, RCPT, or DATA input.
	 * Uses the PHPMailerSMTP class by default.
	 * 
	 * @see PHPMailer::getSMTPInstance() to use a different class.
	 * @param string $header
	 *        	The message headers
	 * @param string $body
	 *        	The message body
	 * @throws phpmailerException
	 * @uses SMTP
	 * @access protected
	 * @return bool
	 */
	protected function smtpSend($header, $body) {
		$bad_rcpt = array ();
		
		if (! $this->smtpConnect ()) {
			throw new phpmailerException ( $this->lang ( 'smtp_connect_failed' ), self::STOP_CRITICAL );
		}
		$smtp_from = ($this->Sender == '') ? $this->From : $this->Sender;
		if (! $this->smtp->mail ( $smtp_from )) {
			$this->setError ( $this->lang ( 'from_failed' ) . $smtp_from . ' : ' . implode ( ',', $this->smtp->getError () ) );
			throw new phpmailerException ( $this->ErrorInfo, self::STOP_CRITICAL );
		}
		
		// Attempt to send to all recipients
		foreach ( $this->to as $to ) {
			if (! $this->smtp->recipient ( $to [0] )) {
				$bad_rcpt [] = $to [0];
				$isSent = 0;
			} else {
				$isSent = 1;
			}
			$this->doCallback ( $isSent, $to [0], '', '', $this->Subject, $body, $this->From );
		}
		foreach ( $this->cc as $cc ) {
			if (! $this->smtp->recipient ( $cc [0] )) {
				$bad_rcpt [] = $cc [0];
				$isSent = 0;
			} else {
				$isSent = 1;
			}
			$this->doCallback ( $isSent, '', $cc [0], '', $this->Subject, $body, $this->From );
		}
		foreach ( $this->bcc as $bcc ) {
			if (! $this->smtp->recipient ( $bcc [0] )) {
				$bad_rcpt [] = $bcc [0];
				$isSent = 0;
			} else {
				$isSent = 1;
			}
			$this->doCallback ( $isSent, '', '', $bcc [0], $this->Subject, $body, $this->From );
		}
		
		// Only send the DATA command if we have viable recipients
		if ((count ( $this->all_recipients ) > count ( $bad_rcpt )) and ! $this->smtp->data ( $header . $body )) {
			throw new phpmailerException ( $this->lang ( 'data_not_accepted' ), self::STOP_CRITICAL );
		}
		if ($this->SMTPKeepAlive == true) {
			$this->smtp->reset ();
		} else {
			$this->smtp->quit ();
			$this->smtp->close ();
		}
		if (count ( $bad_rcpt ) > 0) { // Create error message for any bad addresses
			throw new phpmailerException ( $this->lang ( 'recipients_failed' ) . implode ( ', ', $bad_rcpt ), self::STOP_CONTINUE );
		}
		return true;
	}
	
	/**
	 * Initiate a connection to an SMTP server.
	 * Returns false if the operation failed.
	 * 
	 * @param array $options
	 *        	An array of options compatible with stream_context_create()
	 * @uses SMTP
	 * @access public
	 * @throws phpmailerException
	 * @return bool
	 */
	public function smtpConnect($options = array()) {
		if (is_null ( $this->smtp )) {
			$this->smtp = $this->getSMTPInstance ();
		}
		
		// Already connected?
		if ($this->smtp->connected ()) {
			return true;
		}
		
		$this->smtp->setTimeout ( $this->Timeout );
		$this->smtp->setDebugLevel ( $this->SMTPDebug );
		$this->smtp->setDebugOutput ( $this->Debugoutput );
		$this->smtp->setVerp ( $this->do_verp );
		$hosts = explode ( ';', $this->Host );
		$lastexception = null;
		
		foreach ( $hosts as $hostentry ) {
			$hostinfo = array ();
			if (! preg_match ( '/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*):?([0-9]*)$/', trim ( $hostentry ), $hostinfo )) {
				// Not a valid host entry
				continue;
			}
			// $hostinfo[2]: optional ssl or tls prefix
			// $hostinfo[3]: the hostname
			// $hostinfo[4]: optional port number
			// The host string prefix can temporarily override the current setting for SMTPSecure
			// If it's not specified, the default value is used
			$prefix = '';
			$tls = ($this->SMTPSecure == 'tls');
			if ($hostinfo [2] == 'ssl' or ($hostinfo [2] == '' and $this->SMTPSecure == 'ssl')) {
				$prefix = 'ssl://';
				$tls = false; // Can't have SSL and TLS at once
			} elseif ($hostinfo [2] == 'tls') {
				$tls = true;
				// tls doesn't use a prefix
			}
			$host = $hostinfo [3];
			$port = $this->Port;
			$tport = ( integer ) $hostinfo [4];
			if ($tport > 0 and $tport < 65536) {
				$port = $tport;
			}
			if ($this->smtp->connect ( $prefix . $host, $port, $this->Timeout, $options )) {
				try {
					if ($this->Helo) {
						$hello = $this->Helo;
					} else {
						$hello = $this->serverHostname ();
					}
					$this->smtp->hello ( $hello );
					
					if ($tls) {
						if (! $this->smtp->startTLS ()) {
							throw new phpmailerException ( $this->lang ( 'connect_host' ) );
						}
						// We must resend HELO after tls negotiation
						$this->smtp->hello ( $hello );
					}
					if ($this->SMTPAuth) {
						if (! $this->smtp->authenticate ( $this->Username, $this->Password, $this->AuthType, $this->Realm, $this->Workstation )) {
							throw new phpmailerException ( $this->lang ( 'authenticate' ) );
						}
					}
					return true;
				} catch ( phpmailerException $exc ) {
					$lastexception = $exc;
					// We must have connected, but then failed TLS or Auth, so close connection nicely
					$this->smtp->quit ();
				}
			}
		}
		// If we get here, all connection attempts have failed, so close connection hard
		$this->smtp->close ();
		// As we've caught all exceptions, just report whatever the last one was
		if ($this->exceptions and ! is_null ( $lastexception )) {
			throw $lastexception;
		}
		return false;
	}
	
	/**
	 * Close the active SMTP session if one exists.
	 * 
	 * @return void
	 */
	public function smtpClose() {
		if ($this->smtp !== null) {
			if ($this->smtp->connected ()) {
				$this->smtp->quit ();
				$this->smtp->close ();
			}
		}
	}
	
	/**
	 * Set the language for error messages.
	 * Returns false if it cannot load the language file.
	 * The default language is English.
	 * 
	 * @param string $langcode
	 *        	ISO 639-1 2-character language code (e.g. French is "fr")
	 * @param string $lang_path
	 *        	Path to the language file directory, with trailing separator (slash)
	 * @return bool
	 * @access public
	 */
	public function setLanguage($langcode = 'en', $lang_path = '') {
		// Define full set of translatable strings in English
		$PHPMAILER_LANG = array (
				'authenticate' => 'SMTP Error: Could not authenticate.',
				'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
				'data_not_accepted' => 'SMTP Error: data not accepted.',
				'empty_message' => 'Message body empty',
				'encoding' => 'Unknown encoding: ',
				'execute' => 'Could not execute: ',
				'file_access' => 'Could not access file: ',
				'file_open' => 'File Error: Could not open file: ',
				'from_failed' => 'The following From address failed: ',
				'instantiate' => 'Could not instantiate mail function.',
				'invalid_address' => 'Invalid address',
				'mailer_not_supported' => ' mailer is not supported.',
				'provide_address' => 'You must provide at least one recipient email address.',
				'recipients_failed' => 'SMTP Error: The following recipients failed: ',
				'signing' => 'Signing Error: ',
				'smtp_connect_failed' => 'SMTP connect() failed.',
				'smtp_error' => 'SMTP server error: ',
				'variable_set' => 'Cannot set or reset variable: ' 
		);
		if (empty ( $lang_path )) {
			// Calculate an absolute path so it can work if CWD is not here
			$lang_path = dirname ( __FILE__ ) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
		}
		$foundlang = true;
		$lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php';
		if ($langcode != 'en') { // There is no English translation file
		                         // Make sure language file path is readable
			if (! is_readable ( $lang_file )) {
				$foundlang = false;
			} else {
				// Overwrite language-specific strings.
				// This way we'll never have missing translations.
				$foundlang = include $lang_file;
			}
		}
		$this->language = $PHPMAILER_LANG;
		return ($foundlang == true); // Returns false if language not found
	}
	
	/**
	 * Get the array of strings for the current language.
	 * 
	 * @return array
	 */
	public function getTranslations() {
		return $this->language;
	}
	
	/**
	 * Create recipient headers.
	 * 
	 * @access public
	 * @param string $type        	
	 * @param array $addr
	 *        	An array of recipient,
	 *        	where each recipient is a 2-element indexed array with element 0 containing an address
	 *        	and element 1 containing a name, like:
	 *        	array(array('joe@example.com', 'Joe User'), array('zoe@example.com', 'Zoe User'))
	 * @return string
	 */
	public function addrAppend($type, $addr) {
		$addresses = array ();
		foreach ( $addr as $address ) {
			$addresses [] = $this->addrFormat ( $address );
		}
		return $type . ': ' . implode ( ', ', $addresses ) . $this->LE;
	}
	
	/**
	 * Format an address for use in a message header.
	 * 
	 * @access public
	 * @param array $addr
	 *        	A 2-element indexed array, element 0 containing an address, element 1 containing a name
	 *        	like array('joe@example.com', 'Joe User')
	 * @return string
	 */
	public function addrFormat($addr) {
		if (empty ( $addr [1] )) { // No name provided
			return $this->secureHeader ( $addr [0] );
		} else {
			return $this->encodeHeader ( $this->secureHeader ( $addr [1] ), 'phrase' ) . " <" . $this->secureHeader ( $addr [0] ) . ">";
		}
	}
	
	/**
	 * Word-wrap message.
	 * For use with mailers that do not automatically perform wrapping
	 * and for quoted-printable encoded messages.
	 * Original written by philippe.
	 * 
	 * @param string $message
	 *        	The message to wrap
	 * @param integer $length
	 *        	The line length to wrap to
	 * @param bool $qp_mode
	 *        	Whether to run in Quoted-Printable mode
	 * @access public
	 * @return string
	 */
	public function wrapText($message, $length, $qp_mode = false) {
		$soft_break = ($qp_mode) ? sprintf ( " =%s", $this->LE ) : $this->LE;
		// If utf-8 encoding is used, we will need to make sure we don't
		// split multibyte characters when we wrap
		$is_utf8 = (strtolower ( $this->CharSet ) == "utf-8");
		$lelen = strlen ( $this->LE );
		$crlflen = strlen ( self::CRLF );
		
		$message = $this->fixEOL ( $message );
		if (substr ( $message, - $lelen ) == $this->LE) {
			$message = substr ( $message, 0, - $lelen );
		}
		
		$line = explode ( $this->LE, $message ); // Magic. We know fixEOL uses $LE
		$message = '';
		for($i = 0; $i < count ( $line ); $i ++) {
			$line_part = explode ( ' ', $line [$i] );
			$buf = '';
			for($e = 0; $e < count ( $line_part ); $e ++) {
				$word = $line_part [$e];
				if ($qp_mode and (strlen ( $word ) > $length)) {
					$space_left = $length - strlen ( $buf ) - $crlflen;
					if ($e != 0) {
						if ($space_left > 20) {
							$len = $space_left;
							if ($is_utf8) {
								$len = $this->utf8CharBoundary ( $word, $len );
							} elseif (substr ( $word, $len - 1, 1 ) == "=") {
								$len --;
							} elseif (substr ( $word, $len - 2, 1 ) == "=") {
								$len -= 2;
							}
							$part = substr ( $word, 0, $len );
							$word = substr ( $word, $len );
							$buf .= ' ' . $part;
							$message .= $buf . sprintf ( "=%s", self::CRLF );
						} else {
							$message .= $buf . $soft_break;
						}
						$buf = '';
					}
					while ( strlen ( $word ) > 0 ) {
						if ($length <= 0) {
							break;
						}
						$len = $length;
						if ($is_utf8) {
							$len = $this->utf8CharBoundary ( $word, $len );
						} elseif (substr ( $word, $len - 1, 1 ) == "=") {
							$len --;
						} elseif (substr ( $word, $len - 2, 1 ) == "=") {
							$len -= 2;
						}
						$part = substr ( $word, 0, $len );
						$word = substr ( $word, $len );
						
						if (strlen ( $word ) > 0) {
							$message .= $part . sprintf ( "=%s", self::CRLF );
						} else {
							$buf = $part;
						}
					}
				} else {
					$buf_o = $buf;
					$buf .= ($e == 0) ? $word : (' ' . $word);
					
					if (strlen ( $buf ) > $length and $buf_o != '') {
						$message .= $buf_o . $soft_break;
						$buf = $word;
					}
				}
			}
			$message .= $buf . self::CRLF;
		}
		
		return $message;
	}
	
	/**
	 * Find the last character boundary prior to $maxLength in a utf-8
	 * quoted (printable) encoded string.
	 * Original written by Colin Brown.
	 * 
	 * @access public
	 * @param string $encodedText
	 *        	utf-8 QP text
	 * @param int $maxLength
	 *        	find last character boundary prior to this length
	 * @return int
	 */
	public function utf8CharBoundary($encodedText, $maxLength) {
		$foundSplitPos = false;
		$lookBack = 3;
		while ( ! $foundSplitPos ) {
			$lastChunk = substr ( $encodedText, $maxLength - $lookBack, $lookBack );
			$encodedCharPos = strpos ( $lastChunk, "=" );
			if ($encodedCharPos !== false) {
				// Found start of encoded character byte within $lookBack block.
				// Check the encoded byte value (the 2 chars after the '=')
				$hex = substr ( $encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2 );
				$dec = hexdec ( $hex );
				if ($dec < 128) { // Single byte character.
				                  // If the encoded char was found at pos 0, it will fit
				                  // otherwise reduce maxLength to start of the encoded char
					$maxLength = ($encodedCharPos == 0) ? $maxLength : $maxLength - ($lookBack - $encodedCharPos);
					$foundSplitPos = true;
				} elseif ($dec >= 192) { // First byte of a multi byte character
				                         // Reduce maxLength to split at start of character
					$maxLength = $maxLength - ($lookBack - $encodedCharPos);
					$foundSplitPos = true;
				} elseif ($dec < 192) { // Middle byte of a multi byte character, look further back
					$lookBack += 3;
				}
			} else {
				// No encoded character found
				$foundSplitPos = true;
			}
		}
		return $maxLength;
	}
	
	/**
	 * Set the body wrapping.
	 * 
	 * @access public
	 * @return void
	 */
	public function setWordWrap() {
		if ($this->WordWrap < 1) {
			return;
		}
		
		switch ($this->message_type) {
			case 'alt' :
			case 'alt_inline' :
			case 'alt_attach' :
			case 'alt_inline_attach' :
				$this->AltBody = $this->wrapText ( $this->AltBody, $this->WordWrap );
				break;
			default :
				$this->Body = $this->wrapText ( $this->Body, $this->WordWrap );
				break;
		}
	}
	
	/**
	 * Assemble message headers.
	 * 
	 * @access public
	 * @return string The assembled headers
	 */
	public function createHeader() {
		$result = '';
		
		// Set the boundaries
		$uniq_id = md5 ( uniqid ( time () ) );
		$this->boundary [1] = 'b1_' . $uniq_id;
		$this->boundary [2] = 'b2_' . $uniq_id;
		$this->boundary [3] = 'b3_' . $uniq_id;
		
		if ($this->MessageDate == '') {
			$result .= $this->headerLine ( 'Date', self::rfcDate () );
		} else {
			$result .= $this->headerLine ( 'Date', $this->MessageDate );
		}
		
		// To be created automatically by mail()
		if ($this->SingleTo === true) {
			if ($this->Mailer != 'mail') {
				foreach ( $this->to as $toaddr ) {
					$this->SingleToArray [] = $this->addrFormat ( $toaddr );
				}
			}
		} else {
			if (count ( $this->to ) > 0) {
				if ($this->Mailer != 'mail') {
					$result .= $this->addrAppend ( 'To', $this->to );
				}
			} elseif (count ( $this->cc ) == 0) {
				$result .= $this->headerLine ( 'To', 'undisclosed-recipients:;' );
			}
		}
		
		$result .= $this->addrAppend ( 'From', array (
				array (
						trim ( $this->From ),
						$this->FromName 
				) 
		) );
		
		// sendmail and mail() extract Cc from the header before sending
		if (count ( $this->cc ) > 0) {
			$result .= $this->addrAppend ( 'Cc', $this->cc );
		}
		
		// sendmail and mail() extract Bcc from the header before sending
		if (($this->Mailer == 'sendmail' or $this->Mailer == 'qmail' or $this->Mailer == 'mail') and count ( $this->bcc ) > 0) {
			$result .= $this->addrAppend ( 'Bcc', $this->bcc );
		}
		
		if (count ( $this->ReplyTo ) > 0) {
			$result .= $this->addrAppend ( 'Reply-To', $this->ReplyTo );
		}
		
		// mail() sets the subject itself
		if ($this->Mailer != 'mail') {
			$result .= $this->headerLine ( 'Subject', $this->encodeHeader ( $this->secureHeader ( $this->Subject ) ) );
		}
		
		if ($this->MessageID != '') {
			$this->lastMessageID = $this->MessageID;
		} else {
			$this->lastMessageID = sprintf ( "<%s@%s>", $uniq_id, $this->ServerHostname () );
		}
		$result .= $this->HeaderLine ( 'Message-ID', $this->lastMessageID );
		$result .= $this->headerLine ( 'X-Priority', $this->Priority );
		if ($this->XMailer == '') {
			$result .= $this->headerLine ( 'X-Mailer', 'PHPMailer ' . $this->Version . ' (https://github.com/PHPMailer/PHPMailer/)' );
		} else {
			$myXmailer = trim ( $this->XMailer );
			if ($myXmailer) {
				$result .= $this->headerLine ( 'X-Mailer', $myXmailer );
			}
		}
		
		if ($this->ConfirmReadingTo != '') {
			$result .= $this->headerLine ( 'Disposition-Notification-To', '<' . trim ( $this->ConfirmReadingTo ) . '>' );
		}
		
		// Add custom headers
		for($index = 0; $index < count ( $this->CustomHeader ); $index ++) {
			$result .= $this->headerLine ( trim ( $this->CustomHeader [$index] [0] ), $this->encodeHeader ( trim ( $this->CustomHeader [$index] [1] ) ) );
		}
		if (! $this->sign_key_file) {
			$result .= $this->headerLine ( 'MIME-Version', '1.0' );
			$result .= $this->getMailMIME ();
		}
		
		return $result;
	}
	
	/**
	 * Get the message MIME type headers.
	 * 
	 * @access public
	 * @return string
	 */
	public function getMailMIME() {
		$result = '';
		switch ($this->message_type) {
			case 'inline' :
				$result .= $this->headerLine ( 'Content-Type', 'multipart/related;' );
				$result .= $this->textLine ( "\tboundary=\"" . $this->boundary [1] . '"' );
				break;
			case 'attach' :
			case 'inline_attach' :
			case 'alt_attach' :
			case 'alt_inline_attach' :
				$result .= $this->headerLine ( 'Content-Type', 'multipart/mixed;' );
				$result .= $this->textLine ( "\tboundary=\"" . $this->boundary [1] . '"' );
				break;
			case 'alt' :
			case 'alt_inline' :
				$result .= $this->headerLine ( 'Content-Type', 'multipart/alternative;' );
				$result .= $this->textLine ( "\tboundary=\"" . $this->boundary [1] . '"' );
				break;
			default :
				// Catches case 'plain': and case '':
				$result .= $this->textLine ( 'Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet );
				break;
		}
		// RFC1341 part 5 says 7bit is assumed if not specified
		if ($this->Encoding != '7bit') {
			$result .= $this->headerLine ( 'Content-Transfer-Encoding', $this->Encoding );
		}
		
		if ($this->Mailer != 'mail') {
			$result .= $this->LE;
		}
		
		return $result;
	}
	
	/**
	 * Returns the whole MIME message.
	 * Includes complete headers and body.
	 * Only valid post PreSend().
	 * 
	 * @see PHPMailer::PreSend()
	 * @access public
	 * @return string
	 */
	public function getSentMIMEMessage() {
		return $this->MIMEHeader . $this->mailHeader . self::CRLF . $this->MIMEBody;
	}
	
	/**
	 * Assemble the message body.
	 * Returns an empty string on failure.
	 * 
	 * @access public
	 * @throws phpmailerException
	 * @return string The assembled message body
	 */
	public function createBody() {
		$body = '';
		
		if ($this->sign_key_file) {
			$body .= $this->getMailMIME () . $this->LE;
		}
		
		$this->setWordWrap ();
		
		$bodyEncoding = $this->Encoding;
		$bodyCharSet = $this->CharSet;
		if ($bodyEncoding == '8bit' and ! $this->has8bitChars ( $this->Body )) {
			$bodyEncoding = '7bit';
			$bodyCharSet = 'us-ascii';
		}
		$altBodyEncoding = $this->Encoding;
		$altBodyCharSet = $this->CharSet;
		if ($altBodyEncoding == '8bit' and ! $this->has8bitChars ( $this->AltBody )) {
			$altBodyEncoding = '7bit';
			$altBodyCharSet = 'us-ascii';
		}
		switch ($this->message_type) {
			case 'inline' :
				$body .= $this->getBoundary ( $this->boundary [1], $bodyCharSet, '', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll ( 'inline', $this->boundary [1] );
				break;
			case 'attach' :
				$body .= $this->getBoundary ( $this->boundary [1], $bodyCharSet, '', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll ( 'attachment', $this->boundary [1] );
				break;
			case 'inline_attach' :
				$body .= $this->textLine ( '--' . $this->boundary [1] );
				$body .= $this->headerLine ( 'Content-Type', 'multipart/related;' );
				$body .= $this->textLine ( "\tboundary=\"" . $this->boundary [2] . '"' );
				$body .= $this->LE;
				$body .= $this->getBoundary ( $this->boundary [2], $bodyCharSet, '', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll ( 'inline', $this->boundary [2] );
				$body .= $this->LE;
				$body .= $this->attachAll ( 'attachment', $this->boundary [1] );
				break;
			case 'alt' :
				$body .= $this->getBoundary ( $this->boundary [1], $altBodyCharSet, 'text/plain', $altBodyEncoding );
				$body .= $this->encodeString ( $this->AltBody, $altBodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->getBoundary ( $this->boundary [1], $bodyCharSet, 'text/html', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				if (! empty ( $this->Ical )) {
					$body .= $this->getBoundary ( $this->boundary [1], '', 'text/calendar; method=REQUEST', '' );
					$body .= $this->encodeString ( $this->Ical, $this->Encoding );
					$body .= $this->LE . $this->LE;
				}
				$body .= $this->endBoundary ( $this->boundary [1] );
				break;
			case 'alt_inline' :
				$body .= $this->getBoundary ( $this->boundary [1], $altBodyCharSet, 'text/plain', $altBodyEncoding );
				$body .= $this->encodeString ( $this->AltBody, $altBodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->textLine ( '--' . $this->boundary [1] );
				$body .= $this->headerLine ( 'Content-Type', 'multipart/related;' );
				$body .= $this->textLine ( "\tboundary=\"" . $this->boundary [2] . '"' );
				$body .= $this->LE;
				$body .= $this->getBoundary ( $this->boundary [2], $bodyCharSet, 'text/html', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll ( 'inline', $this->boundary [2] );
				$body .= $this->LE;
				$body .= $this->endBoundary ( $this->boundary [1] );
				break;
			case 'alt_attach' :
				$body .= $this->textLine ( '--' . $this->boundary [1] );
				$body .= $this->headerLine ( 'Content-Type', 'multipart/alternative;' );
				$body .= $this->textLine ( "\tboundary=\"" . $this->boundary [2] . '"' );
				$body .= $this->LE;
				$body .= $this->getBoundary ( $this->boundary [2], $altBodyCharSet, 'text/plain', $altBodyEncoding );
				$body .= $this->encodeString ( $this->AltBody, $altBodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->getBoundary ( $this->boundary [2], $bodyCharSet, 'text/html', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->endBoundary ( $this->boundary [2] );
				$body .= $this->LE;
				$body .= $this->attachAll ( 'attachment', $this->boundary [1] );
				break;
			case 'alt_inline_attach' :
				$body .= $this->textLine ( '--' . $this->boundary [1] );
				$body .= $this->headerLine ( 'Content-Type', 'multipart/alternative;' );
				$body .= $this->textLine ( "\tboundary=\"" . $this->boundary [2] . '"' );
				$body .= $this->LE;
				$body .= $this->getBoundary ( $this->boundary [2], $altBodyCharSet, 'text/plain', $altBodyEncoding );
				$body .= $this->encodeString ( $this->AltBody, $altBodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->textLine ( '--' . $this->boundary [2] );
				$body .= $this->headerLine ( 'Content-Type', 'multipart/related;' );
				$body .= $this->textLine ( "\tboundary=\"" . $this->boundary [3] . '"' );
				$body .= $this->LE;
				$body .= $this->getBoundary ( $this->boundary [3], $bodyCharSet, 'text/html', $bodyEncoding );
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll ( 'inline', $this->boundary [3] );
				$body .= $this->LE;
				$body .= $this->endBoundary ( $this->boundary [2] );
				$body .= $this->LE;
				$body .= $this->attachAll ( 'attachment', $this->boundary [1] );
				break;
			default :
				// catch case 'plain' and case ''
				$body .= $this->encodeString ( $this->Body, $bodyEncoding );
				break;
		}
		
		if ($this->isError ()) {
			$body = '';
		} elseif ($this->sign_key_file) {
			try {
				if (! defined ( 'PKCS7_TEXT' )) {
					throw new phpmailerException ( $this->lang ( 'signing' ) . ' OpenSSL extension missing.' );
				}
				// TODO would be nice to use php://temp streams here, but need to wrap for PHP < 5.1
				$file = tempnam ( sys_get_temp_dir (), 'mail' );
				file_put_contents ( $file, $body ); // TODO check this worked
				$signed = tempnam ( sys_get_temp_dir (), 'signed' );
				if (@openssl_pkcs7_sign ( $file, $signed, 'file://' . realpath ( $this->sign_cert_file ), array (
						'file://' . realpath ( $this->sign_key_file ),
						$this->sign_key_pass 
				), null )) {
					@unlink ( $file );
					$body = file_get_contents ( $signed );
					@unlink ( $signed );
				} else {
					@unlink ( $file );
					@unlink ( $signed );
					throw new phpmailerException ( $this->lang ( 'signing' ) . openssl_error_string () );
				}
			} catch ( phpmailerException $exc ) {
				$body = '';
				if ($this->exceptions) {
					throw $exc;
				}
			}
		}
		return $body;
	}
	
	/**
	 * Return the start of a message boundary.
	 * 
	 * @access protected
	 * @param string $boundary        	
	 * @param string $charSet        	
	 * @param string $contentType        	
	 * @param string $encoding        	
	 * @return string
	 */
	protected function getBoundary($boundary, $charSet, $contentType, $encoding) {
		$result = '';
		if ($charSet == '') {
			$charSet = $this->CharSet;
		}
		if ($contentType == '') {
			$contentType = $this->ContentType;
		}
		if ($encoding == '') {
			$encoding = $this->Encoding;
		}
		$result .= $this->textLine ( '--' . $boundary );
		$result .= sprintf ( "Content-Type: %s; charset=%s", $contentType, $charSet );
		$result .= $this->LE;
		// RFC1341 part 5 says 7bit is assumed if not specified
		if ($encoding != '7bit') {
			$result .= $this->headerLine ( 'Content-Transfer-Encoding', $encoding );
		}
		$result .= $this->LE;
		
		return $result;
	}
	
	/**
	 * Return the end of a message boundary.
	 * 
	 * @access protected
	 * @param string $boundary        	
	 * @return string
	 */
	protected function endBoundary($boundary) {
		return $this->LE . '--' . $boundary . '--' . $this->LE;
	}
	
	/**
	 * Set the message type.
	 * PHPMailer only supports some preset message types,
	 * not arbitrary MIME structures.
	 * 
	 * @access protected
	 * @return void
	 */
	protected function setMessageType() {
		$this->message_type = array ();
		if ($this->alternativeExists ()) {
			$this->message_type [] = "alt";
		}
		if ($this->inlineImageExists ()) {
			$this->message_type [] = "inline";
		}
		if ($this->attachmentExists ()) {
			$this->message_type [] = "attach";
		}
		$this->message_type = implode ( "_", $this->message_type );
		if ($this->message_type == "") {
			$this->message_type = "plain";
		}
	}
	
	/**
	 * Format a header line.
	 * 
	 * @access public
	 * @param string $name        	
	 * @param string $value        	
	 * @return string
	 */
	public function headerLine($name, $value) {
		return $name . ': ' . $value . $this->LE;
	}
	
	/**
	 * Return a formatted mail line.
	 * 
	 * @access public
	 * @param string $value        	
	 * @return string
	 */
	public function textLine($value) {
		return $value . $this->LE;
	}
	
	/**
	 * Add an attachment from a path on the filesystem.
	 * Returns false if the file could not be found or read.
	 * 
	 * @param string $path
	 *        	Path to the attachment.
	 * @param string $name
	 *        	Overrides the attachment name.
	 * @param string $encoding
	 *        	File encoding (see $Encoding).
	 * @param string $type
	 *        	File extension (MIME) type.
	 * @param string $disposition
	 *        	Disposition to use
	 * @throws phpmailerException
	 * @return bool
	 */
	public function addAttachment($path, $name = '', $encoding = 'base64', $type = '', $disposition = 'attachment') {
		try {
			if (! @is_file ( $path )) {
				throw new phpmailerException ( $this->lang ( 'file_access' ) . $path, self::STOP_CONTINUE );
			}
			
			// If a MIME type is not specified, try to work it out from the file name
			if ($type == '') {
				$type = self::filenameToType ( $path );
			}
			
			$filename = basename ( $path );
			if ($name == '') {
				$name = $filename;
			}
			
			$this->attachment [] = array (
					0 => $path,
					1 => $filename,
					2 => $name,
					3 => $encoding,
					4 => $type,
					5 => false, // isStringAttachment
					6 => $disposition,
					7 => 0 
			);
		} catch ( phpmailerException $exc ) {
			$this->setError ( $exc->getMessage () );
			$this->edebug ( $exc->getMessage () );
			if ($this->exceptions) {
				throw $exc;
			}
			return false;
		}
		return true;
	}
	
	/**
	 * Return the array of attachments.
	 * 
	 * @return array
	 */
	public function getAttachments() {
		return $this->attachment;
	}
	
	/**
	 * Attach all file, string, and binary attachments to the message.
	 * Returns an empty string on failure.
	 * 
	 * @access protected
	 * @param string $disposition_type        	
	 * @param string $boundary        	
	 * @return string
	 */
	protected function attachAll($disposition_type, $boundary) {
		// Return text of body
		$mime = array ();
		$cidUniq = array ();
		$incl = array ();
		
		// Add all attachments
		foreach ( $this->attachment as $attachment ) {
			// Check if it is a valid disposition_filter
			if ($attachment [6] == $disposition_type) {
				// Check for string attachment
				$string = '';
				$path = '';
				$bString = $attachment [5];
				if ($bString) {
					$string = $attachment [0];
				} else {
					$path = $attachment [0];
				}
				
				$inclhash = md5 ( serialize ( $attachment ) );
				if (in_array ( $inclhash, $incl )) {
					continue;
				}
				$incl [] = $inclhash;
				$name = $attachment [2];
				$encoding = $attachment [3];
				$type = $attachment [4];
				$disposition = $attachment [6];
				$cid = $attachment [7];
				if ($disposition == 'inline' && isset ( $cidUniq [$cid] )) {
					continue;
				}
				$cidUniq [$cid] = true;
				
				$mime [] = sprintf ( "--%s%s", $boundary, $this->LE );
				$mime [] = sprintf ( "Content-Type: %s; name=\"%s\"%s", $type, $this->encodeHeader ( $this->secureHeader ( $name ) ), $this->LE );
				// RFC1341 part 5 says 7bit is assumed if not specified
				if ($encoding != '7bit') {
					$mime [] = sprintf ( "Content-Transfer-Encoding: %s%s", $encoding, $this->LE );
				}
				
				if ($disposition == 'inline') {
					$mime [] = sprintf ( "Content-ID: <%s>%s", $cid, $this->LE );
				}
				
				// If a filename contains any of these chars, it should be quoted,
				// but not otherwise: RFC2183 & RFC2045 5.1
				// Fixes a warning in IETF's msglint MIME checker
				// Allow for bypassing the Content-Disposition header totally
				if (! (empty ( $disposition ))) {
					if (preg_match ( '/[ \(\)<>@,;:\\"\/\[\]\?=]/', $name )) {
						$mime [] = sprintf ( "Content-Disposition: %s; filename=\"%s\"%s", $disposition, $this->encodeHeader ( $this->secureHeader ( $name ) ), $this->LE . $this->LE );
					} else {
						$mime [] = sprintf ( "Content-Disposition: %s; filename=%s%s", $disposition, $this->encodeHeader ( $this->secureHeader ( $name ) ), $this->LE . $this->LE );
					}
				} else {
					$mime [] = $this->LE;
				}
				
				// Encode as string attachment
				if ($bString) {
					$mime [] = $this->encodeString ( $string, $encoding );
					if ($this->isError ()) {
						return '';
					}
					$mime [] = $this->LE . $this->LE;
				} else {
					$mime [] = $this->encodeFile ( $path, $encoding );
					if ($this->isError ()) {
						return '';
					}
					$mime [] = $this->LE . $this->LE;
				}
			}
		}
		
		$mime [] = sprintf ( "--%s--%s", $boundary, $this->LE );
		
		return implode ( "", $mime );
	}
	
	/**
	 * Encode a file attachment in requested format.
	 * Returns an empty string on failure.
	 * 
	 * @param string $path
	 *        	The full path to the file
	 * @param string $encoding
	 *        	The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
	 * @throws phpmailerException
	 * @see EncodeFile(encodeFile
	 * @access protected
	 * @return string
	 */
	protected function encodeFile($path, $encoding = 'base64') {
		try {
			if (! is_readable ( $path )) {
				throw new phpmailerException ( $this->lang ( 'file_open' ) . $path, self::STOP_CONTINUE );
			}
			$magic_quotes = get_magic_quotes_runtime ();
			if ($magic_quotes) {
				if (version_compare ( PHP_VERSION, '5.3.0', '<' )) {
					set_magic_quotes_runtime ( 0 );
				} else {
					ini_set ( 'magic_quotes_runtime', 0 );
				}
			}
			$file_buffer = file_get_contents ( $path );
			$file_buffer = $this->encodeString ( $file_buffer, $encoding );
			if ($magic_quotes) {
				if (version_compare ( PHP_VERSION, '5.3.0', '<' )) {
					set_magic_quotes_runtime ( $magic_quotes );
				} else {
					ini_set ( 'magic_quotes_runtime', $magic_quotes );
				}
			}
			return $file_buffer;
		} catch ( Exception $exc ) {
			$this->setError ( $exc->getMessage () );
			return '';
		}
	}
	
	/**
	 * Encode a string in requested format.
	 * Returns an empty string on failure.
	 * 
	 * @param string $str
	 *        	The text to encode
	 * @param string $encoding
	 *        	The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
	 * @access public
	 * @return string
	 */
	public function encodeString($str, $encoding = 'base64') {
		$encoded = '';
		switch (strtolower ( $encoding )) {
			case 'base64' :
				$encoded = chunk_split ( base64_encode ( $str ), 76, $this->LE );
				break;
			case '7bit' :
			case '8bit' :
				$encoded = $this->fixEOL ( $str );
				// Make sure it ends with a line break
				if (substr ( $encoded, - (strlen ( $this->LE )) ) != $this->LE) {
					$encoded .= $this->LE;
				}
				break;
			case 'binary' :
				$encoded = $str;
				break;
			case 'quoted-printable' :
				$encoded = $this->encodeQP ( $str );
				break;
			default :
				$this->setError ( $this->lang ( 'encoding' ) . $encoding );
				break;
		}
		return $encoded;
	}
	
	/**
	 * Encode a header string optimally.
	 * Picks shortest of Q, B, quoted-printable or none.
	 * 
	 * @access public
	 * @param string $str        	
	 * @param string $position        	
	 * @return string
	 */
	public function encodeHeader($str, $position = 'text') {
		$matchcount = 0;
		switch (strtolower ( $position )) {
			case 'phrase' :
				if (! preg_match ( '/[\200-\377]/', $str )) {
					// Can't use addslashes as we don't know the value of magic_quotes_sybase
					$encoded = addcslashes ( $str, "\0..\37\177\\\"" );
					if (($str == $encoded) && ! preg_match ( '/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str )) {
						return ($encoded);
					} else {
						return ("\"$encoded\"");
					}
				}
				$matchcount = preg_match_all ( '/[^\040\041\043-\133\135-\176]/', $str, $matches );
				break;
			/**
			 * @noinspection PhpMissingBreakStatementInspection
			 */
			case 'comment' :
				$matchcount = preg_match_all ( '/[()"]/', $str, $matches );
			// Intentional fall-through
			case 'text' :
			default :
				$matchcount += preg_match_all ( '/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches );
				break;
		}
		
		if ($matchcount == 0) { // There are no chars that need encoding
			return ($str);
		}
		
		$maxlen = 75 - 7 - strlen ( $this->CharSet );
		// Try to select the encoding which should produce the shortest output
		if ($matchcount > strlen ( $str ) / 3) {
			// More than a third of the content will need encoding, so B encoding will be most efficient
			$encoding = 'B';
			if (function_exists ( 'mb_strlen' ) && $this->hasMultiBytes ( $str )) {
				// Use a custom function which correctly encodes and wraps long
				// multibyte strings without breaking lines within a character
				$encoded = $this->base64EncodeWrapMB ( $str, "\n" );
			} else {
				$encoded = base64_encode ( $str );
				$maxlen -= $maxlen % 4;
				$encoded = trim ( chunk_split ( $encoded, $maxlen, "\n" ) );
			}
		} else {
			$encoding = 'Q';
			$encoded = $this->encodeQ ( $str, $position );
			$encoded = $this->wrapText ( $encoded, $maxlen, true );
			$encoded = str_replace ( '=' . self::CRLF, "\n", trim ( $encoded ) );
		}
		
		$encoded = preg_replace ( '/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded );
		$encoded = trim ( str_replace ( "\n", $this->LE, $encoded ) );
		
		return $encoded;
	}
	
	/**
	 * Check if a string contains multi-byte characters.
	 * 
	 * @access public
	 * @param string $str
	 *        	multi-byte text to wrap encode
	 * @return bool
	 */
	public function hasMultiBytes($str) {
		if (function_exists ( 'mb_strlen' )) {
			return (strlen ( $str ) > mb_strlen ( $str, $this->CharSet ));
		} else { // Assume no multibytes (we can't handle without mbstring functions anyway)
			return false;
		}
	}
	
	/**
	 * Does a string contain any 8-bit chars (in any charset)?
	 * 
	 * @param string $text        	
	 * @return bool
	 */
	public function has8bitChars($text) {
		return ( bool ) preg_match ( '/[\x80-\xFF]/', $text );
	}
	
	/**
	 * Encode and wrap long multibyte strings for mail headers
	 * without breaking lines within a character.
	 * Adapted from a function by paravoid
	 * 
	 * @link http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
	 * @access public
	 * @param string $str
	 *        	multi-byte text to wrap encode
	 * @param string $linebreak
	 *        	string to use as linefeed/end-of-line
	 * @return string
	 */
	public function base64EncodeWrapMB($str, $linebreak = null) {
		$start = "=?" . $this->CharSet . "?B?";
		$end = "?=";
		$encoded = "";
		if ($linebreak === null) {
			$linebreak = $this->LE;
		}
		
		$mb_length = mb_strlen ( $str, $this->CharSet );
		// Each line must have length <= 75, including $start and $end
		$length = 75 - strlen ( $start ) - strlen ( $end );
		// Average multi-byte ratio
		$ratio = $mb_length / strlen ( $str );
		// Base64 has a 4:3 ratio
		$avgLength = floor ( $length * $ratio * .75 );
		
		for($i = 0; $i < $mb_length; $i += $offset) {
			$lookBack = 0;
			do {
				$offset = $avgLength - $lookBack;
				$chunk = mb_substr ( $str, $i, $offset, $this->CharSet );
				$chunk = base64_encode ( $chunk );
				$lookBack ++;
			} while ( strlen ( $chunk ) > $length );
			$encoded .= $chunk . $linebreak;
		}
		
		// Chomp the last linefeed
		$encoded = substr ( $encoded, 0, - strlen ( $linebreak ) );
		return $encoded;
	}
	
	/**
	 * Encode a string in quoted-printable format.
	 * According to RFC2045 section 6.7.
	 * 
	 * @access public
	 * @param string $string
	 *        	The text to encode
	 * @param integer $line_max
	 *        	Number of chars allowed on a line before wrapping
	 * @return string
	 * @link http://www.php.net/manual/en/function.quoted-printable-decode.php#89417 Adapted from this comment
	 */
	public function encodeQP($string, $line_max = 76) {
		if (function_exists ( 'quoted_printable_encode' )) { // Use native function if it's available (>= PHP5.3)
			return $this->fixEOL ( quoted_printable_encode ( $string ) );
		}
		// Fall back to a pure PHP implementation
		$string = str_replace ( array (
				'%20',
				'%0D%0A.',
				'%0D%0A',
				'%' 
		), array (
				' ',
				"\r\n=2E",
				"\r\n",
				'=' 
		), rawurlencode ( $string ) );
		$string = preg_replace ( '/[^\r\n]{' . ($line_max - 3) . '}[^=\r\n]{2}/', "$0=\r\n", $string );
		return $this->fixEOL ( $string );
	}
	
	/**
	 * Backward compatibility wrapper for an old QP encoding function that was removed.
	 * 
	 * @see PHPMailer::encodeQP()
	 * @access public
	 * @param string $string        	
	 * @param integer $line_max        	
	 * @param bool $space_conv        	
	 * @return string
	 * @deprecated Use encodeQP instead.
	 */
	public function encodeQPphp($string, $line_max = 76, /**
	 * @noinspection PhpUnusedParameterInspection
	 */
	$space_conv = false) {
		return $this->encodeQP ( $string, $line_max );
	}
	
	/**
	 * Encode a string using Q encoding.
	 * 
	 * @link http://tools.ietf.org/html/rfc2047
	 * @param string $str
	 *        	the text to encode
	 * @param string $position
	 *        	Where the text is going to be used, see the RFC for what that means
	 * @access public
	 * @return string
	 */
	public function encodeQ($str, $position = 'text') {
		// There should not be any EOL in the string
		$pattern = '';
		$encoded = str_replace ( array (
				"\r",
				"\n" 
		), '', $str );
		switch (strtolower ( $position )) {
			case 'phrase' :
				// RFC 2047 section 5.3
				$pattern = '^A-Za-z0-9!*+\/ -';
				break;
			/**
			 * @noinspection PhpMissingBreakStatementInspection
			 */
			case 'comment' :
				// RFC 2047 section 5.2
				$pattern = '\(\)"';
			// intentional fall-through
			// for this reason we build the $pattern without including delimiters and []
			case 'text' :
			default :
				// RFC 2047 section 5.1
				// Replace every high ascii, control, =, ? and _ characters
				$pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern;
				break;
		}
		$matches = array ();
		if (preg_match_all ( "/[{$pattern}]/", $encoded, $matches )) {
			// If the string contains an '=', make sure it's the first thing we replace
			// so as to avoid double-encoding
			$eqkey = array_search ( '=', $matches [0] );
			if ($eqkey !== false) {
				unset ( $matches [0] [$eqkey] );
				array_unshift ( $matches [0], '=' );
			}
			foreach ( array_unique ( $matches [0] ) as $char ) {
				$encoded = str_replace ( $char, '=' . sprintf ( '%02X', ord ( $char ) ), $encoded );
			}
		}
		// Replace every spaces to _ (more readable than =20)
		return str_replace ( ' ', '_', $encoded );
	}
	
	/**
	 * Add a string or binary attachment (non-filesystem).
	 * This method can be used to attach ascii or binary data,
	 * such as a BLOB record from a database.
	 * 
	 * @param string $string
	 *        	String attachment data.
	 * @param string $filename
	 *        	Name of the attachment.
	 * @param string $encoding
	 *        	File encoding (see $Encoding).
	 * @param string $type
	 *        	File extension (MIME) type.
	 * @param string $disposition
	 *        	Disposition to use
	 * @return void
	 */
	public function addStringAttachment($string, $filename, $encoding = 'base64', $type = '', $disposition = 'attachment') {
		// If a MIME type is not specified, try to work it out from the file name
		if ($type == '') {
			$type = self::filenameToType ( $filename );
		}
		// Append to $attachment array
		$this->attachment [] = array (
				0 => $string,
				1 => $filename,
				2 => basename ( $filename ),
				3 => $encoding,
				4 => $type,
				5 => true, // isStringAttachment
				6 => $disposition,
				7 => 0 
		);
	}
	
	/**
	 * Add an embedded (inline) attachment from a file.
	 * This can include images, sounds, and just about any other document type.
	 * These differ from 'regular' attachmants in that they are intended to be
	 * displayed inline with the message, not just attached for download.
	 * This is used in HTML messages that embed the images
	 * the HTML refers to using the $cid value.
	 * 
	 * @param string $path
	 *        	Path to the attachment.
	 * @param string $cid
	 *        	Content ID of the attachment; Use this to reference
	 *        	the content when using an embedded image in HTML.
	 * @param string $name
	 *        	Overrides the attachment name.
	 * @param string $encoding
	 *        	File encoding (see $Encoding).
	 * @param string $type
	 *        	File MIME type.
	 * @param string $disposition
	 *        	Disposition to use
	 * @return bool True on successfully adding an attachment
	 */
	public function addEmbeddedImage($path, $cid, $name = '', $encoding = 'base64', $type = '', $disposition = 'inline') {
		if (! @is_file ( $path )) {
			$this->setError ( $this->lang ( 'file_access' ) . $path );
			return false;
		}
		
		// If a MIME type is not specified, try to work it out from the file name
		if ($type == '') {
			$type = self::filenameToType ( $path );
		}
		
		$filename = basename ( $path );
		if ($name == '') {
			$name = $filename;
		}
		
		// Append to $attachment array
		$this->attachment [] = array (
				0 => $path,
				1 => $filename,
				2 => $name,
				3 => $encoding,
				4 => $type,
				5 => false, // isStringAttachment
				6 => $disposition,
				7 => $cid 
		);
		return true;
	}
	
	/**
	 * Add an embedded stringified attachment.
	 * This can include images, sounds, and just about any other document type.
	 * Be sure to set the $type to an image type for images:
	 * JPEG images use 'image/jpeg', GIF uses 'image/gif', PNG uses 'image/png'.
	 * 
	 * @param string $string
	 *        	The attachment binary data.
	 * @param string $cid
	 *        	Content ID of the attachment; Use this to reference
	 *        	the content when using an embedded image in HTML.
	 * @param string $name        	
	 * @param string $encoding
	 *        	File encoding (see $Encoding).
	 * @param string $type
	 *        	MIME type.
	 * @param string $disposition
	 *        	Disposition to use
	 * @return bool True on successfully adding an attachment
	 */
	public function addStringEmbeddedImage($string, $cid, $name = '', $encoding = 'base64', $type = '', $disposition = 'inline') {
		// If a MIME type is not specified, try to work it out from the name
		if ($type == '') {
			$type = self::filenameToType ( $name );
		}
		
		// Append to $attachment array
		$this->attachment [] = array (
				0 => $string,
				1 => $name,
				2 => $name,
				3 => $encoding,
				4 => $type,
				5 => true, // isStringAttachment
				6 => $disposition,
				7 => $cid 
		);
		return true;
	}
	
	/**
	 * Check if an inline attachment is present.
	 * 
	 * @access public
	 * @return bool
	 */
	public function inlineImageExists() {
		foreach ( $this->attachment as $attachment ) {
			if ($attachment [6] == 'inline') {
				return true;
			}
		}
		return false;
	}
	
	/**
	 * Check if an attachment (non-inline) is present.
	 * 
	 * @return bool
	 */
	public function attachmentExists() {
		foreach ( $this->attachment as $attachment ) {
			if ($attachment [6] == 'attachment') {
				return true;
			}
		}
		return false;
	}
	
	/**
	 * Check if this message has an alternative body set.
	 * 
	 * @return bool
	 */
	public function alternativeExists() {
		return ! empty ( $this->AltBody );
	}
	
	/**
	 * Clear all To recipients.
	 * 
	 * @return void
	 */
	public function clearAddresses() {
		foreach ( $this->to as $to ) {
			unset ( $this->all_recipients [strtolower ( $to [0] )] );
		}
		$this->to = array ();
	}
	
	/**
	 * Clear all CC recipients.
	 * 
	 * @return void
	 */
	public function clearCCs() {
		foreach ( $this->cc as $cc ) {
			unset ( $this->all_recipients [strtolower ( $cc [0] )] );
		}
		$this->cc = array ();
	}
	
	/**
	 * Clear all BCC recipients.
	 * 
	 * @return void
	 */
	public function clearBCCs() {
		foreach ( $this->bcc as $bcc ) {
			unset ( $this->all_recipients [strtolower ( $bcc [0] )] );
		}
		$this->bcc = array ();
	}
	
	/**
	 * Clear all ReplyTo recipients.
	 * 
	 * @return void
	 */
	public function clearReplyTos() {
		$this->ReplyTo = array ();
	}
	
	/**
	 * Clear all recipient types.
	 * 
	 * @return void
	 */
	public function clearAllRecipients() {
		$this->to = array ();
		$this->cc = array ();
		$this->bcc = array ();
		$this->all_recipients = array ();
	}
	
	/**
	 * Clear all filesystem, string, and binary attachments.
	 * 
	 * @return void
	 */
	public function clearAttachments() {
		$this->attachment = array ();
	}
	
	/**
	 * Clear all custom headers.
	 * 
	 * @return void
	 */
	public function clearCustomHeaders() {
		$this->CustomHeader = array ();
	}
	
	/**
	 * Add an error message to the error container.
	 * 
	 * @access protected
	 * @param string $msg        	
	 * @return void
	 */
	protected function setError($msg) {
		$this->error_count ++;
		if ($this->Mailer == 'smtp' and ! is_null ( $this->smtp )) {
			$lasterror = $this->smtp->getError ();
			if (! empty ( $lasterror ) and array_key_exists ( 'smtp_msg', $lasterror )) {
				$msg .= '<p>' . $this->lang ( 'smtp_error' ) . $lasterror ['smtp_msg'] . "</p>\n";
			}
		}
		$this->ErrorInfo = $msg;
	}
	
	/**
	 * Return an RFC 822 formatted date.
	 * 
	 * @access public
	 * @return string
	 * @static
	 *
	 */
	public static function rfcDate() {
		// Set the time zone to whatever the default is to avoid 500 errors
		// Will default to UTC if it's not set properly in php.ini
		date_default_timezone_set ( @date_default_timezone_get () );
		return date ( 'D, j M Y H:i:s O' );
	}
	
	/**
	 * Get the server hostname.
	 * Returns 'localhost.localdomain' if unknown.
	 * 
	 * @access protected
	 * @return string
	 */
	protected function serverHostname() {
		$result = 'localhost.localdomain';
		if (! empty ( $this->Hostname )) {
			$result = $this->Hostname;
		} elseif (isset ( $_SERVER ) and array_key_exists ( 'SERVER_NAME', $_SERVER ) and ! empty ( $_SERVER ['SERVER_NAME'] )) {
			$result = $_SERVER ['SERVER_NAME'];
		} elseif (function_exists ( 'gethostname' ) && gethostname () !== false) {
			$result = gethostname ();
		} elseif (php_uname ( 'n' ) !== false) {
			$result = php_uname ( 'n' );
		}
		return $result;
	}
	
	/**
	 * Get an error message in the current language.
	 * 
	 * @access protected
	 * @param string $key        	
	 * @return string
	 */
	protected function lang($key) {
		if (count ( $this->language ) < 1) {
			$this->setLanguage ( 'en' ); // set the default language
		}
		
		if (isset ( $this->language [$key] )) {
			return $this->language [$key];
		} else {
			return 'Language string failed to load: ' . $key;
		}
	}
	
	/**
	 * Check if an error occurred.
	 * 
	 * @access public
	 * @return bool True if an error did occur.
	 */
	public function isError() {
		return ($this->error_count > 0);
	}
	
	/**
	 * Ensure consistent line endings in a string.
	 * Changes every end of line from CRLF, CR or LF to $this->LE.
	 * 
	 * @access public
	 * @param string $str
	 *        	String to fixEOL
	 * @return string
	 */
	public function fixEOL($str) {
		// Normalise to \n
		$nstr = str_replace ( array (
				"\r\n",
				"\r" 
		), "\n", $str );
		// Now convert LE as needed
		if ($this->LE !== "\n") {
			$nstr = str_replace ( "\n", $this->LE, $nstr );
		}
		return $nstr;
	}
	
	/**
	 * Add a custom header.
	 * $name value can be overloaded to contain
	 * both header name and value (name:value)
	 * 
	 * @access public
	 * @param string $name
	 *        	Custom header name
	 * @param string $value
	 *        	Header value
	 * @return void
	 */
	public function addCustomHeader($name, $value = null) {
		if ($value === null) {
			// Value passed in as name:value
			$this->CustomHeader [] = explode ( ':', $name, 2 );
		} else {
			$this->CustomHeader [] = array (
					$name,
					$value 
			);
		}
	}
	
	/**
	 * Create a message from an HTML string.
	 * Automatically makes modifications for inline images and backgrounds
	 * and creates a plain-text version by converting the HTML.
	 * Overwrites any existing values in $this->Body and $this->AltBody
	 * 
	 * @access public
	 * @param string $message
	 *        	HTML message string
	 * @param string $basedir
	 *        	baseline directory for path
	 * @param bool $advanced
	 *        	Whether to use the advanced HTML to text converter
	 * @return string $message
	 */
	public function msgHTML($message, $basedir = '', $advanced = false) {
		preg_match_all ( "/(src|background)=[\"'](.*)[\"']/Ui", $message, $images );
		if (isset ( $images [2] )) {
			foreach ( $images [2] as $imgindex => $url ) {
				// do not change urls for absolute images (thanks to corvuscorax)
				if (! preg_match ( '#^[A-z]+://#', $url )) {
					$filename = basename ( $url );
					$directory = dirname ( $url );
					if ($directory == '.') {
						$directory = '';
					}
					$cid = md5 ( $url ) . '@phpmailer.0'; // RFC2392 S 2
					if (strlen ( $basedir ) > 1 && substr ( $basedir, - 1 ) != '/') {
						$basedir .= '/';
					}
					if (strlen ( $directory ) > 1 && substr ( $directory, - 1 ) != '/') {
						$directory .= '/';
					}
					if ($this->addEmbeddedImage ( $basedir . $directory . $filename, $cid, $filename, 'base64', self::_mime_types ( self::mb_pathinfo ( $filename, PATHINFO_EXTENSION ) ) )) {
						$message = preg_replace ( "/" . $images [1] [$imgindex] . "=[\"']" . preg_quote ( $url, '/' ) . "[\"']/Ui", $images [1] [$imgindex] . "=\"cid:" . $cid . "\"", $message );
					}
				}
			}
		}
		$this->isHTML ( true );
		// Convert all message body line breaks to CRLF, makes quoted-printable encoding work much better
		$this->Body = $this->normalizeBreaks ( $message );
		$this->AltBody = $this->normalizeBreaks ( $this->html2text ( $message, $advanced ) );
		if (empty ( $this->AltBody )) {
			$this->AltBody = 'To view this email message, open it in a program that understands HTML!' . self::CRLF . self::CRLF;
		}
		return $this->Body;
	}
	
	/**
	 * Convert an HTML string into plain text.
	 * 
	 * @param string $html
	 *        	The HTML text to convert
	 * @param bool $advanced
	 *        	Should this use the more complex html2text converter or just a simple one?
	 * @return string
	 */
	public function html2text($html, $advanced = false) {
		if ($advanced) {
			require_once 'extras/class.html2text.php';
			$htmlconverter = new html2text ( $html );
			return $htmlconverter->get_text ();
		}
		return html_entity_decode ( trim ( strip_tags ( preg_replace ( '/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html ) ) ), ENT_QUOTES, $this->CharSet );
	}
	
	/**
	 * Get the MIME type for a file extension.
	 * 
	 * @param string $ext
	 *        	File extension
	 * @access public
	 * @return string MIME type of file.
	 * @static
	 *
	 */
	public static function _mime_types($ext = '') {
		$mimes = array (
				'xl' => 'application/excel',
				'hqx' => 'application/mac-binhex40',
				'cpt' => 'application/mac-compactpro',
				'bin' => 'application/macbinary',
				'doc' => 'application/msword',
				'word' => 'application/msword',
				'class' => 'application/octet-stream',
				'dll' => 'application/octet-stream',
				'dms' => 'application/octet-stream',
				'exe' => 'application/octet-stream',
				'lha' => 'application/octet-stream',
				'lzh' => 'application/octet-stream',
				'psd' => 'application/octet-stream',
				'sea' => 'application/octet-stream',
				'so' => 'application/octet-stream',
				'oda' => 'application/oda',
				'pdf' => 'application/pdf',
				'ai' => 'application/postscript',
				'eps' => 'application/postscript',
				'ps' => 'application/postscript',
				'smi' => 'application/smil',
				'smil' => 'application/smil',
				'mif' => 'application/vnd.mif',
				'xls' => 'application/vnd.ms-excel',
				'ppt' => 'application/vnd.ms-powerpoint',
				'wbxml' => 'application/vnd.wap.wbxml',
				'wmlc' => 'application/vnd.wap.wmlc',
				'dcr' => 'application/x-director',
				'dir' => 'application/x-director',
				'dxr' => 'application/x-director',
				'dvi' => 'application/x-dvi',
				'gtar' => 'application/x-gtar',
				'php3' => 'application/x-httpd-php',
				'php4' => 'application/x-httpd-php',
				'php' => 'application/x-httpd-php',
				'phtml' => 'application/x-httpd-php',
				'phps' => 'application/x-httpd-php-source',
				'js' => 'application/x-javascript',
				'swf' => 'application/x-shockwave-flash',
				'sit' => 'application/x-stuffit',
				'tar' => 'application/x-tar',
				'tgz' => 'application/x-tar',
				'xht' => 'application/xhtml+xml',
				'xhtml' => 'application/xhtml+xml',
				'zip' => 'application/zip',
				'mid' => 'audio/midi',
				'midi' => 'audio/midi',
				'mp2' => 'audio/mpeg',
				'mp3' => 'audio/mpeg',
				'mpga' => 'audio/mpeg',
				'aif' => 'audio/x-aiff',
				'aifc' => 'audio/x-aiff',
				'aiff' => 'audio/x-aiff',
				'ram' => 'audio/x-pn-realaudio',
				'rm' => 'audio/x-pn-realaudio',
				'rpm' => 'audio/x-pn-realaudio-plugin',
				'ra' => 'audio/x-realaudio',
				'wav' => 'audio/x-wav',
				'bmp' => 'image/bmp',
				'gif' => 'image/gif',
				'jpeg' => 'image/jpeg',
				'jpe' => 'image/jpeg',
				'jpg' => 'image/jpeg',
				'png' => 'image/png',
				'tiff' => 'image/tiff',
				'tif' => 'image/tiff',
				'eml' => 'message/rfc822',
				'css' => 'text/css',
				'html' => 'text/html',
				'htm' => 'text/html',
				'shtml' => 'text/html',
				'log' => 'text/plain',
				'text' => 'text/plain',
				'txt' => 'text/plain',
				'rtx' => 'text/richtext',
				'rtf' => 'text/rtf',
				'vcf' => 'text/vcard',
				'vcard' => 'text/vcard',
				'xml' => 'text/xml',
				'xsl' => 'text/xml',
				'mpeg' => 'video/mpeg',
				'mpe' => 'video/mpeg',
				'mpg' => 'video/mpeg',
				'mov' => 'video/quicktime',
				'qt' => 'video/quicktime',
				'rv' => 'video/vnd.rn-realvideo',
				'avi' => 'video/x-msvideo',
				'movie' => 'video/x-sgi-movie' 
		);
		return (array_key_exists ( strtolower ( $ext ), $mimes ) ? $mimes [strtolower ( $ext )] : 'application/octet-stream');
	}
	
	/**
	 * Map a file name to a MIME type.
	 * Defaults to 'application/octet-stream', i.e.. arbitrary binary data.
	 * 
	 * @param string $filename
	 *        	A file name or full path, does not need to exist as a file
	 * @return string
	 * @static
	 *
	 */
	public static function filenameToType($filename) {
		// In case the path is a URL, strip any query string before getting extension
		$qpos = strpos ( $filename, '?' );
		if ($qpos !== false) {
			$filename = substr ( $filename, 0, $qpos );
		}
		$pathinfo = self::mb_pathinfo ( $filename );
		return self::_mime_types ( $pathinfo ['extension'] );
	}
	
	/**
	 * Multi-byte-safe pathinfo replacement.
	 * Drop-in replacement for pathinfo(), but multibyte-safe, cross-platform-safe, old-version-safe.
	 * Works similarly to the one in PHP >= 5.2.0
	 * 
	 * @link http://www.php.net/manual/en/function.pathinfo.php#107461
	 * @param string $path
	 *        	A filename or path, does not need to exist as a file
	 * @param integer|string $options
	 *        	Either a PATHINFO_* constant,
	 *        	or a string name to return only the specified piece, allows 'filename' to work on PHP < 5.2
	 * @return string array
	 * @static
	 *
	 */
	public static function mb_pathinfo($path, $options = null) {
		$ret = array (
				'dirname' => '',
				'basename' => '',
				'extension' => '',
				'filename' => '' 
		);
		$pathinfo = array ();
		preg_match ( '%^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$%im', $path, $pathinfo );
		if (array_key_exists ( 1, $pathinfo )) {
			$ret ['dirname'] = $pathinfo [1];
		}
		if (array_key_exists ( 2, $pathinfo )) {
			$ret ['basename'] = $pathinfo [2];
		}
		if (array_key_exists ( 5, $pathinfo )) {
			$ret ['extension'] = $pathinfo [5];
		}
		if (array_key_exists ( 3, $pathinfo )) {
			$ret ['filename'] = $pathinfo [3];
		}
		switch ($options) {
			case PATHINFO_DIRNAME :
			case 'dirname' :
				return $ret ['dirname'];
				break;
			case PATHINFO_BASENAME :
			case 'basename' :
				return $ret ['basename'];
				break;
			case PATHINFO_EXTENSION :
			case 'extension' :
				return $ret ['extension'];
				break;
			case PATHINFO_FILENAME :
			case 'filename' :
				return $ret ['filename'];
				break;
			default :
				return $ret;
		}
	}
	
	/**
	 * Set or reset instance properties.
	 *
	 * Usage Example:
	 * $page->set('X-Priority', '3');
	 *
	 * @access public
	 * @param string $name        	
	 * @param mixed $value
	 *        	NOTE: will not work with arrays, there are no arrays to set/reset
	 * @throws phpmailerException
	 * @return bool
	 * @todo Should this not be using __set() magic function?
	 */
	public function set($name, $value = '') {
		try {
			if (isset ( $this->$name )) {
				$this->$name = $value;
			} else {
				throw new phpmailerException ( $this->lang ( 'variable_set' ) . $name, self::STOP_CRITICAL );
			}
		} catch ( Exception $exc ) {
			$this->setError ( $exc->getMessage () );
			if ($exc->getCode () == self::STOP_CRITICAL) {
				return false;
			}
		}
		return true;
	}
	
	/**
	 * Strip newlines to prevent header injection.
	 * 
	 * @access public
	 * @param string $str        	
	 * @return string
	 */
	public function secureHeader($str) {
		return trim ( str_replace ( array (
				"\r",
				"\n" 
		), '', $str ) );
	}
	
	/**
	 * Normalize line breaks in a string.
	 * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format.
	 * Defaults to CRLF (for message bodies) and preserves consecutive breaks.
	 * 
	 * @param string $text        	
	 * @param string $breaktype
	 *        	What kind of line break to use, defaults to CRLF
	 * @return string
	 * @access public
	 * @static
	 *
	 */
	public static function normalizeBreaks($text, $breaktype = "\r\n") {
		return preg_replace ( '/(\r\n|\r|\n)/ms', $breaktype, $text );
	}
	
	/**
	 * Set the public and private key files and password for S/MIME signing.
	 * 
	 * @access public
	 * @param string $cert_filename        	
	 * @param string $key_filename        	
	 * @param string $key_pass
	 *        	Password for private key
	 */
	public function sign($cert_filename, $key_filename, $key_pass) {
		$this->sign_cert_file = $cert_filename;
		$this->sign_key_file = $key_filename;
		$this->sign_key_pass = $key_pass;
	}
	
	/**
	 * Quoted-Printable-encode a DKIM header.
	 * 
	 * @access public
	 * @param string $txt        	
	 * @return string
	 */
	public function DKIM_QP($txt) {
		$line = '';
		for($i = 0; $i < strlen ( $txt ); $i ++) {
			$ord = ord ( $txt [$i] );
			if (((0x21 <= $ord) && ($ord <= 0x3A)) || $ord == 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E))) {
				$line .= $txt [$i];
			} else {
				$line .= "=" . sprintf ( "%02X", $ord );
			}
		}
		return $line;
	}
	
	/**
	 * Generate a DKIM signature.
	 * 
	 * @access public
	 * @param string $signheader
	 *        	Header
	 * @throws phpmailerException
	 * @return string
	 */
	public function DKIM_Sign($signheader) {
		if (! defined ( 'PKCS7_TEXT' )) {
			if ($this->exceptions) {
				throw new phpmailerException ( $this->lang ( "signing" ) . ' OpenSSL extension missing.' );
			}
			return '';
		}
		$privKeyStr = file_get_contents ( $this->DKIM_private );
		if ($this->DKIM_passphrase != '') {
			$privKey = openssl_pkey_get_private ( $privKeyStr, $this->DKIM_passphrase );
		} else {
			$privKey = $privKeyStr;
		}
		if (openssl_sign ( $signheader, $signature, $privKey )) {
			return base64_encode ( $signature );
		}
		return '';
	}
	
	/**
	 * Generate a DKIM canonicalization header.
	 * 
	 * @access public
	 * @param string $signheader
	 *        	Header
	 * @return string
	 */
	public function DKIM_HeaderC($signheader) {
		$signheader = preg_replace ( "/\r\n\s+/", " ", $signheader );
		$lines = explode ( "\r\n", $signheader );
		foreach ( $lines as $key => $line ) {
			list ( $heading, $value ) = explode ( ":", $line, 2 );
			$heading = strtolower ( $heading );
			$value = preg_replace ( "/\s+/", " ", $value ); // Compress useless spaces
			$lines [$key] = $heading . ":" . trim ( $value ); // Don't forget to remove WSP around the value
		}
		$signheader = implode ( "\r\n", $lines );
		return $signheader;
	}
	
	/**
	 * Generate a DKIM canonicalization body.
	 * 
	 * @access public
	 * @param string $body
	 *        	Message Body
	 * @return string
	 */
	public function DKIM_BodyC($body) {
		if ($body == '') {
			return "\r\n";
		}
		// stabilize line endings
		$body = str_replace ( "\r\n", "\n", $body );
		$body = str_replace ( "\n", "\r\n", $body );
		// END stabilize line endings
		while ( substr ( $body, strlen ( $body ) - 4, 4 ) == "\r\n\r\n" ) {
			$body = substr ( $body, 0, strlen ( $body ) - 2 );
		}
		return $body;
	}
	
	/**
	 * Create the DKIM header and body in a new message header.
	 * 
	 * @access public
	 * @param string $headers_line
	 *        	Header lines
	 * @param string $subject
	 *        	Subject
	 * @param string $body
	 *        	Body
	 * @return string
	 */
	public function DKIM_Add($headers_line, $subject, $body) {
		$DKIMsignatureType = 'rsa-sha1'; // Signature & hash algorithms
		$DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body
		$DKIMquery = 'dns/txt'; // Query method
		$DKIMtime = time (); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
		$subject_header = "Subject: $subject";
		$headers = explode ( $this->LE, $headers_line );
		$from_header = '';
		$to_header = '';
		$current = '';
		foreach ( $headers as $header ) {
			if (strpos ( $header, 'From:' ) === 0) {
				$from_header = $header;
				$current = 'from_header';
			} elseif (strpos ( $header, 'To:' ) === 0) {
				$to_header = $header;
				$current = 'to_header';
			} else {
				if ($current && strpos ( $header, ' =?' ) === 0) {
					$current .= $header;
				} else {
					$current = '';
				}
			}
		}
		$from = str_replace ( '|', '=7C', $this->DKIM_QP ( $from_header ) );
		$to = str_replace ( '|', '=7C', $this->DKIM_QP ( $to_header ) );
		$subject = str_replace ( '|', '=7C', $this->DKIM_QP ( $subject_header ) ); // Copied header fields (dkim-quoted-printable)
		$body = $this->DKIM_BodyC ( $body );
		$DKIMlen = strlen ( $body ); // Length of body
		$DKIMb64 = base64_encode ( pack ( "H*", sha1 ( $body ) ) ); // Base64 of packed binary SHA-1 hash of body
		$ident = ($this->DKIM_identity == '') ? '' : " i=" . $this->DKIM_identity . ";";
		$dkimhdrs = "DKIM-Signature: v=1; a=" . $DKIMsignatureType . "; q=" . $DKIMquery . "; l=" . $DKIMlen . "; s=" . $this->DKIM_selector . ";\r\n" . "\tt=" . $DKIMtime . "; c=" . $DKIMcanonicalization . ";\r\n" . "\th=From:To:Subject;\r\n" . "\td=" . $this->DKIM_domain . ";" . $ident . "\r\n" . "\tz=$from\r\n" . "\t|$to\r\n" . "\t|$subject;\r\n" . "\tbh=" . $DKIMb64 . ";\r\n" . "\tb=";
		$toSign = $this->DKIM_HeaderC ( $from_header . "\r\n" . $to_header . "\r\n" . $subject_header . "\r\n" . $dkimhdrs );
		$signed = $this->DKIM_Sign ( $toSign );
		return $dkimhdrs . $signed . "\r\n";
	}
	
	/**
	 * Allows for public read access to 'to' property.
	 * 
	 * @access public
	 * @return array
	 */
	public function getToAddresses() {
		return $this->to;
	}
	
	/**
	 * Allows for public read access to 'cc' property.
	 * 
	 * @access public
	 * @return array
	 */
	public function getCcAddresses() {
		return $this->cc;
	}
	
	/**
	 * Allows for public read access to 'bcc' property.
	 * 
	 * @access public
	 * @return array
	 */
	public function getBccAddresses() {
		return $this->bcc;
	}
	
	/**
	 * Allows for public read access to 'ReplyTo' property.
	 * 
	 * @access public
	 * @return array
	 */
	public function getReplyToAddresses() {
		return $this->ReplyTo;
	}
	
	/**
	 * Allows for public read access to 'all_recipients' property.
	 * 
	 * @access public
	 * @return array
	 */
	public function getAllRecipientAddresses() {
		return $this->all_recipients;
	}
	
	/**
	 * Perform a callback.
	 * 
	 * @param bool $isSent        	
	 * @param string $to        	
	 * @param string $cc        	
	 * @param string $bcc        	
	 * @param string $subject        	
	 * @param string $body        	
	 * @param string $from        	
	 */
	protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from = null) {
		if (! empty ( $this->action_function ) && is_callable ( $this->action_function )) {
			$params = array (
					$isSent,
					$to,
					$cc,
					$bcc,
					$subject,
					$body,
					$from 
			);
			call_user_func_array ( $this->action_function, $params );
		}
	}
}

/**
 * PHPMailer exception handler
 * 
 * @package PHPMailer
 */
class phpmailerException extends Exception {
	/**
	 * Prettify error message output
	 * 
	 * @return string
	 */
	public function errorMessage() {
		$errorMsg = '<strong>' . $this->getMessage () . "</strong><br />\n";
		return $errorMsg;
	}
}


/**
 * PHPMailer RFC821 SMTP email transport class.
 * PHP Version 5
 * @package PHPMailer
 * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 * @author Brent R. Matzelle (original founder)
 * @copyright 2014 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 * @note This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 */

/**
 * PHPMailer RFC821 SMTP email transport class.
 * Implements RFC 821 SMTP commands and provides some utility methods for sending mail to an SMTP server.
 * @package PHPMailer
 * @author Chris Ryan <unknown@example.com>
 * @author Marcus Bointon <phpmailer@synchromedia.co.uk>
 */
class SMTP
{
    /**
     * The PHPMailer SMTP version number.
     * @type string
     */
    const VERSION = '5.2.7';

    /**
     * SMTP line break constant.
     * @type string
     */
    const CRLF = "\r\n";

    /**
     * The SMTP port to use if one is not specified.
     * @type int
     */
    const DEFAULT_SMTP_PORT = 25;

    /**
     * The maximum line length allowed by RFC 2822 section 2.1.1
     * @type int
     */
    const MAX_LINE_LENGTH = 998;

    /**
     * The PHPMailer SMTP Version number.
     * @type string
     * @deprecated Use the constant instead
     * @see SMTP::VERSION
     */
    public $Version = '5.2.7';

    /**
     * SMTP server port number.
     * @type int
     * @deprecated This is only ever used as a default value, so use the constant instead
     * @see SMTP::DEFAULT_SMTP_PORT
     */
    public $SMTP_PORT = 25;

    /**
     * SMTP reply line ending.
     * @type string
     * @deprecated Use the constant instead
     * @see SMTP::CRLF
     */
    public $CRLF = "\r\n";

    /**
     * Debug output level.
     * Options:
     * * `0` No output
     * * `1` Commands
     * * `2` Data and commands
     * * `3` As 2 plus connection status
     * * `4` Low-level data output
     * @type int
     */
    public $do_debug = 0;

    /**
     * How to handle debug output.
     * Options:
     * * `echo` Output plain-text as-is, appropriate for CLI
     * * `html` Output escaped, line breaks converted to <br>, appropriate for browser output
     * * `error_log` Output to error log as configured in php.ini
     * @type string
     */
    public $Debugoutput = 'echo';

    /**
     * Whether to use VERP.
     * @link http://en.wikipedia.org/wiki/Variable_envelope_return_path
     * @link http://www.postfix.org/VERP_README.html Info on VERP
     * @type bool
     */
    public $do_verp = false;

    /**
     * The timeout value for connection, in seconds.
     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
     * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure.
     * @link http://tools.ietf.org/html/rfc2821#section-4.5.3.2
     * @type int
     */
    public $Timeout = 300;

    /**
     * The SMTP timelimit value for reads, in seconds.
     * @type int
     */
    public $Timelimit = 30;

    /**
     * The socket for the server connection.
     * @type resource
     */
    protected $smtp_conn;

    /**
     * Error message, if any, for the last call.
     * @type string
     */
    protected $error = '';

    /**
     * The reply the server sent to us for HELO.
     * @type string
     */
    protected $helo_rply = '';

    /**
     * The most recent reply received from the server.
     * @type string
     */
    protected $last_reply = '';

    /**
     * Constructor.
     * @access public
     */
    public function __construct()
    {
        $this->smtp_conn = 0;
        $this->error = null;
        $this->helo_rply = null;
        $this->do_debug = 0;
    }

    /**
     * Output debugging info via a user-selected method.
     * @param string $str Debug string to output
     * @return void
     */
    protected function edebug($str)
    {
        switch ($this->Debugoutput) {
            case 'error_log':
                //Don't output, just log
                error_log($str);
                break;
            case 'html':
                //Cleans up output a bit for a better looking, HTML-safe output
                echo htmlentities(
                        preg_replace('/[\r\n]+/', '', $str),
                        ENT_QUOTES,
                        'UTF-8'
                    )
                    . "<br>\n";
                break;
            case 'echo':
            default:
                echo gmdate('Y-m-d H:i:s')."\t".trim($str)."\n";
        }
    }

    /**
     * Connect to an SMTP server.
     * @param string $host SMTP server IP or host name
     * @param int $port The port number to connect to
     * @param int $timeout How long to wait for the connection to open
     * @param array $options An array of options for stream_context_create()
     * @access public
     * @return bool
     */
    public function connect($host, $port = null, $timeout = 30, $options = array())
    {
        // Clear errors to avoid confusion
        $this->error = null;
        // Make sure we are __not__ connected
        if ($this->connected()) {
            // Already connected, generate error
            $this->error = array('error' => 'Already connected to a server');
            return false;
        }
        if (empty($port)) {
            $port = self::DEFAULT_SMTP_PORT;
        }
        // Connect to the SMTP server
        if ($this->do_debug >= 3) {
            $this->edebug('Connection: opening');
        }
        $errno = 0;
        $errstr = '';
        $socket_context = stream_context_create($options);
        //Suppress errors; connection failures are handled at a higher level
        $this->smtp_conn = @stream_socket_client(
            $host . ":" . $port,
            $errno,
            $errstr,
            $timeout,
            STREAM_CLIENT_CONNECT,
            $socket_context
        );
        // Verify we connected properly
        if (empty($this->smtp_conn)) {
            $this->error = array(
                'error' => 'Failed to connect to server',
                'errno' => $errno,
                'errstr' => $errstr
            );
            if ($this->do_debug >= 1) {
                $this->edebug(
                    'SMTP ERROR: ' . $this->error['error']
                    . ": $errstr ($errno)"
                );
            }
            return false;
        }
        if ($this->do_debug >= 3) {
            $this->edebug('Connection: opened');
        }
        // SMTP server can take longer to respond, give longer timeout for first read
        // Windows does not have support for this timeout function
        if (substr(PHP_OS, 0, 3) != 'WIN') {
            $max = ini_get('max_execution_time');
            if ($max != 0 && $timeout > $max) { // Don't bother if unlimited
                @set_time_limit($timeout);
            }
            stream_set_timeout($this->smtp_conn, $timeout, 0);
        }
        // Get any announcement
        $announce = $this->get_lines();
        if ($this->do_debug >= 2) {
            $this->edebug('SERVER -> CLIENT: ' . $announce);
        }
        return true;
    }

    /**
     * Initiate a TLS (encrypted) session.
     * @access public
     * @return bool
     */
    public function startTLS()
    {
        if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) {
            return false;
        }
        // Begin encrypted connection
        if (!stream_socket_enable_crypto(
            $this->smtp_conn,
            true,
            STREAM_CRYPTO_METHOD_TLS_CLIENT
        )) {
            return false;
        }
        return true;
    }

    /**
     * Perform SMTP authentication.
     * Must be run after hello().
     * @see hello()
     * @param string $username    The user name
     * @param string $password    The password
     * @param string $authtype    The auth type (PLAIN, LOGIN, NTLM, CRAM-MD5)
     * @param string $realm       The auth realm for NTLM
     * @param string $workstation The auth workstation for NTLM
     * @access public
     * @return bool True if successfully authenticated.
     */
    public function authenticate(
        $username,
        $password,
        $authtype = 'LOGIN',
        $realm = '',
        $workstation = ''
    ) {
        if (empty($authtype)) {
            $authtype = 'LOGIN';
        }
        switch ($authtype) {
            case 'PLAIN':
                // Start authentication
                if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) {
                    return false;
                }
                // Send encoded username and password
                if (!$this->sendCommand(
                    'User & Password',
                    base64_encode("\0" . $username . "\0" . $password),
                    235
                )
                ) {
                    return false;
                }
                break;
            case 'LOGIN':
                // Start authentication
                if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) {
                    return false;
                }
                if (!$this->sendCommand("Username", base64_encode($username), 334)) {
                    return false;
                }
                if (!$this->sendCommand("Password", base64_encode($password), 235)) {
                    return false;
                }
                break;
            case 'NTLM':
                /*
                 * ntlm_sasl_client.php
                 * Bundled with Permission
                 *
                 * How to telnet in windows:
                 * http://technet.microsoft.com/en-us/library/aa995718%28EXCHG.65%29.aspx
                 * PROTOCOL Docs http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
                 */
                require_once 'extras/ntlm_sasl_client.php';
                $temp = new stdClass();
                $ntlm_client = new ntlm_sasl_client_class;
                //Check that functions are available
                if (!$ntlm_client->Initialize($temp)) {
                    $this->error = array('error' => $temp->error);
                    if ($this->do_debug >= 1) {
                        $this->edebug(
                            'You need to enable some modules in your php.ini file: '
                            . $this->error['error']
                        );
                    }
                    return false;
                }
                //msg1
                $msg1 = $ntlm_client->TypeMsg1($realm, $workstation); //msg1

                if (!$this->sendCommand(
                    'AUTH NTLM',
                    'AUTH NTLM ' . base64_encode($msg1),
                    334
                )
                ) {
                    return false;
                }
                //Though 0 based, there is a white space after the 3 digit number
                //msg2
                $challenge = substr($this->last_reply, 3);
                $challenge = base64_decode($challenge);
                $ntlm_res = $ntlm_client->NTLMResponse(
                    substr($challenge, 24, 8),
                    $password
                );
                //msg3
                $msg3 = $ntlm_client->TypeMsg3(
                    $ntlm_res,
                    $username,
                    $realm,
                    $workstation
                );
                // send encoded username
                return $this->sendCommand('Username', base64_encode($msg3), 235);
                break;
            case 'CRAM-MD5':
                // Start authentication
                if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) {
                    return false;
                }
                // Get the challenge
                $challenge = base64_decode(substr($this->last_reply, 4));

                // Build the response
                $response = $username . ' ' . $this->hmac($challenge, $password);

                // send encoded credentials
                return $this->sendCommand('Username', base64_encode($response), 235);
                break;
        }
        return true;
    }

    /**
     * Calculate an MD5 HMAC hash.
     * Works like hash_hmac('md5', $data, $key)
     * in case that function is not available
     * @param string $data The data to hash
     * @param string $key  The key to hash with
     * @access protected
     * @return string
     */
    protected function hmac($data, $key)
    {
        if (function_exists('hash_hmac')) {
            return hash_hmac('md5', $data, $key);
        }

        // The following borrowed from
        // http://php.net/manual/en/function.mhash.php#27225

        // RFC 2104 HMAC implementation for php.
        // Creates an md5 HMAC.
        // Eliminates the need to install mhash to compute a HMAC
        // Hacked by Lance Rushing

        $bytelen = 64; // byte length for md5
        if (strlen($key) > $bytelen) {
            $key = pack('H*', md5($key));
        }
        $key = str_pad($key, $bytelen, chr(0x00));
        $ipad = str_pad('', $bytelen, chr(0x36));
        $opad = str_pad('', $bytelen, chr(0x5c));
        $k_ipad = $key ^ $ipad;
        $k_opad = $key ^ $opad;

        return md5($k_opad . pack('H*', md5($k_ipad . $data)));
    }

    /**
     * Check connection state.
     * @access public
     * @return bool True if connected.
     */
    public function connected()
    {
        if (!empty($this->smtp_conn)) {
            $sock_status = stream_get_meta_data($this->smtp_conn);
            if ($sock_status['eof']) {
                // the socket is valid but we are not connected
                if ($this->do_debug >= 1) {
                    $this->edebug(
                        'SMTP NOTICE: EOF caught while checking if connected'
                    );
                }
                $this->close();
                return false;
            }
            return true; // everything looks good
        }
        return false;
    }

    /**
     * Close the socket and clean up the state of the class.
     * Don't use this function without first trying to use QUIT.
     * @see quit()
     * @access public
     * @return void
     */
    public function close()
    {
        $this->error = null; // so there is no confusion
        $this->helo_rply = null;
        if (!empty($this->smtp_conn)) {
            // close the connection and cleanup
            fclose($this->smtp_conn);
            if ($this->do_debug >= 3) {
                $this->edebug('Connection: closed');
            }
            $this->smtp_conn = 0;
        }
    }

    /**
     * Send an SMTP DATA command.
     * Issues a data command and sends the msg_data to the server,
     * finializing the mail transaction. $msg_data is the message
     * that is to be send with the headers. Each header needs to be
     * on a single line followed by a <CRLF> with the message headers
     * and the message body being separated by and additional <CRLF>.
     * Implements rfc 821: DATA <CRLF>
     * @param string $msg_data Message data to send
     * @access public
     * @return bool
     */
    public function data($msg_data)
    {
        if (!$this->sendCommand('DATA', 'DATA', 354)) {
            return false;
        }
        /* The server is ready to accept data!
         * According to rfc821 we should not send more than 1000 characters on a single line (including the CRLF)
         * so we will break the data up into lines by \r and/or \n then if needed we will break each of those into
         * smaller lines to fit within the limit.
         * We will also look for lines that start with a '.' and prepend an additional '.'.
         * NOTE: this does not count towards line-length limit.
         */

        // Normalize line breaks before exploding
        $lines = explode("\n", str_replace(array("\r\n", "\r"), "\n", $msg_data));

        /* To distinguish between a complete RFC822 message and a plain message body, we check if the first field
         * of the first line (':' separated) does not contain a space then it _should_ be a header and we will
         * process all lines before a blank line as headers.
         */

        $field = substr($lines[0], 0, strpos($lines[0], ':'));
        $in_headers = false;
        if (!empty($field) && strpos($field, ' ') === false) {
            $in_headers = true;
        }

        foreach ($lines as $line) {
            $lines_out = array();
            if ($in_headers and $line == '') {
                $in_headers = false;
            }
            // ok we need to break this line up into several smaller lines
            //This is a small micro-optimisation: isset($str[$len]) is equivalent to (strlen($str) > $len)
            while (isset($line[self::MAX_LINE_LENGTH])) {
                //Working backwards, try to find a space within the last MAX_LINE_LENGTH chars of the line to break on
                //so as to avoid breaking in the middle of a word
                $pos = strrpos(substr($line, 0, self::MAX_LINE_LENGTH), ' ');
                if (!$pos) { //Deliberately matches both false and 0
                    //No nice break found, add a hard break
                    $pos = self::MAX_LINE_LENGTH - 1;
                    $lines_out[] = substr($line, 0, $pos);
                    $line = substr($line, $pos);
                } else {
                    //Break at the found point
                    $lines_out[] = substr($line, 0, $pos);
                    //Move along by the amount we dealt with
                    $line = substr($line, $pos + 1);
                }
                /* If processing headers add a LWSP-char to the front of new line
                 * RFC822 section 3.1.1
                 */
                if ($in_headers) {
                    $line = "\t" . $line;
                }
            }
            $lines_out[] = $line;

            // Send the lines to the server
            foreach ($lines_out as $line_out) {
                //RFC2821 section 4.5.2
                if (!empty($line_out) and $line_out[0] == '.') {
                    $line_out = '.' . $line_out;
                }
                $this->client_send($line_out . self::CRLF);
            }
        }

        // Message data has been sent, complete the command
        return $this->sendCommand('DATA END', '.', 250);
    }

    /**
     * Send an SMTP HELO or EHLO command.
     * Used to identify the sending server to the receiving server.
     * This makes sure that client and server are in a known state.
     * Implements RFC 821: HELO <SP> <domain> <CRLF>
     * and RFC 2821 EHLO.
     * @param string $host The host name or IP to connect to
     * @access public
     * @return bool
     */
    public function hello($host = '')
    {
        // Try extended hello first (RFC 2821)
        return (bool)($this->sendHello('EHLO', $host) or $this->sendHello('HELO', $host));
    }

    /**
     * Send an SMTP HELO or EHLO command.
     * Low-level implementation used by hello()
     * @see hello()
     * @param string $hello The HELO string
     * @param string $host The hostname to say we are
     * @access protected
     * @return bool
     */
    protected function sendHello($hello, $host)
    {
        $noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250);
        $this->helo_rply = $this->last_reply;
        return $noerror;
    }

    /**
     * Send an SMTP MAIL command.
     * Starts a mail transaction from the email address specified in
     * $from. Returns true if successful or false otherwise. If True
     * the mail transaction is started and then one or more recipient
     * commands may be called followed by a data command.
     * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
     * @param string $from Source address of this message
     * @access public
     * @return bool
     */
    public function mail($from)
    {
        $useVerp = ($this->do_verp ? ' XVERP' : '');
        return $this->sendCommand(
            'MAIL FROM',
            'MAIL FROM:<' . $from . '>' . $useVerp,
            250
        );
    }

    /**
     * Send an SMTP QUIT command.
     * Closes the socket if there is no error or the $close_on_error argument is true.
     * Implements from rfc 821: QUIT <CRLF>
     * @param bool $close_on_error Should the connection close if an error occurs?
     * @access public
     * @return bool
     */
    public function quit($close_on_error = true)
    {
        $noerror = $this->sendCommand('QUIT', 'QUIT', 221);
        $err = $this->error; //Save any error
        if ($noerror or $close_on_error) {
            $this->close();
            $this->error = $err; //Restore any error from the quit command
        }
        return $noerror;
    }

    /**
     * Send an SMTP RCPT command.
     * Sets the TO argument to $toaddr.
     * Returns true if the recipient was accepted false if it was rejected.
     * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
     * @param string $toaddr The address the message is being sent to
     * @access public
     * @return bool
     */
    public function recipient($toaddr)
    {
        return $this->sendCommand(
            'RCPT TO',
            'RCPT TO:<' . $toaddr . '>',
            array(250, 251)
        );
    }

    /**
     * Send an SMTP RSET command.
     * Abort any transaction that is currently in progress.
     * Implements rfc 821: RSET <CRLF>
     * @access public
     * @return bool True on success.
     */
    public function reset()
    {
        return $this->sendCommand('RSET', 'RSET', 250);
    }

    /**
     * Send a command to an SMTP server and check its return code.
     * @param string $command       The command name - not sent to the server
     * @param string $commandstring The actual command to send
     * @param int|array $expect     One or more expected integer success codes
     * @access protected
     * @return bool True on success.
     */
    protected function sendCommand($command, $commandstring, $expect)
    {
        if (!$this->connected()) {
            $this->error = array(
                'error' => "Called $command without being connected"
            );
            return false;
        }
        $this->client_send($commandstring . self::CRLF);

        $reply = $this->get_lines();
        $code = substr($reply, 0, 3);

        if ($this->do_debug >= 2) {
            $this->edebug('SERVER -> CLIENT: ' . $reply);
        }

        if (!in_array($code, (array)$expect)) {
            $this->last_reply = null;
            $this->error = array(
                'error' => "$command command failed",
                'smtp_code' => $code,
                'detail' => substr($reply, 4)
            );
            if ($this->do_debug >= 1) {
                $this->edebug(
                    'SMTP ERROR: ' . $this->error['error'] . ': ' . $reply
                );
            }
            return false;
        }

        $this->last_reply = $reply;
        $this->error = null;
        return true;
    }

    /**
     * Send an SMTP SAML command.
     * Starts a mail transaction from the email address specified in $from.
     * Returns true if successful or false otherwise. If True
     * the mail transaction is started and then one or more recipient
     * commands may be called followed by a data command. This command
     * will send the message to the users terminal if they are logged
     * in and send them an email.
     * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
     * @param string $from The address the message is from
     * @access public
     * @return bool
     */
    public function sendAndMail($from)
    {
        return $this->sendCommand('SAML', "SAML FROM:$from", 250);
    }

    /**
     * Send an SMTP VRFY command.
     * @param string $name The name to verify
     * @access public
     * @return bool
     */
    public function verify($name)
    {
        return $this->sendCommand('VRFY', "VRFY $name", array(250, 251));
    }

    /**
     * Send an SMTP NOOP command.
     * Used to keep keep-alives alive, doesn't actually do anything
     * @access public
     * @return bool
     */
    public function noop()
    {
        return $this->sendCommand('NOOP', 'NOOP', 250);
    }

    /**
     * Send an SMTP TURN command.
     * This is an optional command for SMTP that this class does not support.
     * This method is here to make the RFC821 Definition complete for this class
     * and _may_ be implemented in future
     * Implements from rfc 821: TURN <CRLF>
     * @access public
     * @return bool
     */
    public function turn()
    {
        $this->error = array(
            'error' => 'The SMTP TURN command is not implemented'
        );
        if ($this->do_debug >= 1) {
            $this->edebug('SMTP NOTICE: ' . $this->error['error']);
        }
        return false;
    }

    /**
     * Send raw data to the server.
     * @param string $data The data to send
     * @access public
     * @return int|bool The number of bytes sent to the server or false on error
     */
    public function client_send($data)
    {
        if ($this->do_debug >= 1) {
            $this->edebug("CLIENT -> SERVER: $data");
        }
        return fwrite($this->smtp_conn, $data);
    }

    /**
     * Get the latest error.
     * @access public
     * @return array
     */
    public function getError()
    {
        return $this->error;
    }

    /**
     * Get the last reply from the server.
     * @access public
     * @return string
     */
    public function getLastReply()
    {
        return $this->last_reply;
    }

    /**
     * Read the SMTP server's response.
     * Either before eof or socket timeout occurs on the operation.
     * With SMTP we can tell if we have more lines to read if the
     * 4th character is '-' symbol. If it is a space then we don't
     * need to read anything else.
     * @access protected
     * @return string
     */
    protected function get_lines()
    {
        // If the connection is bad, give up straight away
        if (!is_resource($this->smtp_conn)) {
            return '';
        }
        $data = '';
        $endtime = 0;
        stream_set_timeout($this->smtp_conn, $this->Timeout);
        if ($this->Timelimit > 0) {
            $endtime = time() + $this->Timelimit;
        }
        while (is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
            $str = @fgets($this->smtp_conn, 515);
            if ($this->do_debug >= 4) {
                $this->edebug("SMTP -> get_lines(): \$data was \"$data\"");
                $this->edebug("SMTP -> get_lines(): \$str is \"$str\"");
            }
            $data .= $str;
            if ($this->do_debug >= 4) {
                $this->edebug("SMTP -> get_lines(): \$data is \"$data\"");
            }
            // If 4th character is a space, we are done reading, break the loop, micro-optimisation over strlen
            if ((isset($str[3]) and $str[3] == ' ')) {
                break;
            }
            // Timed-out? Log and break
            $info = stream_get_meta_data($this->smtp_conn);
            if ($info['timed_out']) {
                if ($this->do_debug >= 4) {
                    $this->edebug(
                        'SMTP -> get_lines(): timed-out (' . $this->Timeout . ' sec)'
                    );
                }
                break;
            }
            // Now check if reads took too long
            if ($endtime and time() > $endtime) {
                if ($this->do_debug >= 4) {
                    $this->edebug(
                        'SMTP -> get_lines(): timelimit reached ('.
                        $this->Timelimit . ' sec)'
                    );
                }
                break;
            }
        }
        return $data;
    }

    /**
     * Enable or disable VERP address generation.
     * @param bool $enabled
     */
    public function setVerp($enabled = false)
    {
        $this->do_verp = $enabled;
    }

    /**
     * Get VERP address generation mode.
     * @return bool
     */
    public function getVerp()
    {
        return $this->do_verp;
    }

    /**
     * Set debug output method.
     * @param string $method The function/method to use for debugging output.
     */
    public function setDebugOutput($method = 'echo')
    {
        $this->Debugoutput = $method;
    }

    /**
     * Get debug output method.
     * @return string
     */
    public function getDebugOutput()
    {
        return $this->Debugoutput;
    }

    /**
     * Set debug output level.
     * @param int $level
     */
    public function setDebugLevel($level = 0)
    {
        $this->do_debug = $level;
    }

    /**
     * Get debug output level.
     * @return int
     */
    public function getDebugLevel()
    {
        return $this->do_debug;
    }

    /**
     * Set SMTP timeout.
     * @param int $timeout
     */
    public function setTimeout($timeout = 0)
    {
        $this->Timeout = $timeout;
    }

    /**
     * Get SMTP timeout.
     * @return int
     */
    public function getTimeout()
    {
        return $this->Timeout;
    }
}


/**
 * PHPMailer POP-Before-SMTP Authentication Class.
 * PHP Version 5
 * @package PHPMailer
 * @link https://github.com/PHPMailer/PHPMailer/
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 * @author Brent R. Matzelle (original founder)
 * @copyright 2012 - 2014 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 * @note This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 */

/**
 * PHPMailer POP-Before-SMTP Authentication Class.
 * Specifically for PHPMailer to use for RFC1939 POP-before-SMTP authentication.
 * Does not support APOP.
 * @package PHPMailer
 * @author Richard Davey (original author) <rich@corephp.co.uk>
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 */
class POP3
{
    /**
     * The POP3 PHPMailer Version number.
     * @type string
     * @access public
     */
    public $Version = '5.2.7';

    /**
     * Default POP3 port number.
     * @type int
     * @access public
     */
    public $POP3_PORT = 110;

    /**
     * Default timeout in seconds.
     * @type int
     * @access public
     */
    public $POP3_TIMEOUT = 30;

    /**
     * POP3 Carriage Return + Line Feed.
     * @type string
     * @access public
     * @deprecated Use the constant instead
     */
    public $CRLF = "\r\n";

    /**
     * Debug display level.
     * Options: 0 = no, 1+ = yes
     * @type int
     * @access public
     */
    public $do_debug = 0;

    /**
     * POP3 mail server hostname.
     * @type string
     * @access public
     */
    public $host;

    /**
     * POP3 port number.
     * @type int
     * @access public
     */
    public $port;

    /**
     * POP3 Timeout Value in seconds.
     * @type int
     * @access public
     */
    public $tval;

    /**
     * POP3 username
     * @type string
     * @access public
     */
    public $username;

    /**
     * POP3 password.
     * @type string
     * @access public
     */
    public $password;

    /**
     * Resource handle for the POP3 connection socket.
     * @type resource
     * @access private
     */
    private $pop_conn;

    /**
     * Are we connected?
     * @type bool
     * @access private
     */
    private $connected;

    /**
     * Error container.
     * @type array
     * @access private
     */
    private $error;

    /**
     * Line break constant
     */
    const CRLF = "\r\n";

    /**
     * Constructor.
     * @access public
     */
    public function __construct()
    {
        $this->pop_conn = 0;
        $this->connected = false;
        $this->error = null;
    }

    /**
     * Simple static wrapper for all-in-one POP before SMTP
     * @param $host
     * @param bool $port
     * @param bool $tval
     * @param string $username
     * @param string $password
     * @param int $debug_level
     * @return bool
     */
    public static function popBeforeSmtp(
        $host,
        $port = false,
        $tval = false,
        $username = '',
        $password = '',
        $debug_level = 0
    ) {
        $pop = new POP3;
        return $pop->authorise($host, $port, $tval, $username, $password, $debug_level);
    }

    /**
     * Authenticate with a POP3 server.
     * A connect, login, disconnect sequence
     * appropriate for POP-before SMTP authorisation.
     * @access public
     * @param string $host
     * @param bool|int $port
     * @param bool|int $tval
     * @param string $username
     * @param string $password
     * @param int $debug_level
     * @return bool
     */
    public function authorise($host, $port = false, $tval = false, $username = '', $password = '', $debug_level = 0)
    {
        $this->host = $host;
        // If no port value provided, use default
        if ($port === false) {
            $this->port = $this->POP3_PORT;
        } else {
            $this->port = $port;
        }
        // If no timeout value provided, use default
        if ($tval === false) {
            $this->tval = $this->POP3_TIMEOUT;
        } else {
            $this->tval = $tval;
        }
        $this->do_debug = $debug_level;
        $this->username = $username;
        $this->password = $password;
        //  Refresh the error log
        $this->error = null;
        //  connect
        $result = $this->connect($this->host, $this->port, $this->tval);
        if ($result) {
            $login_result = $this->login($this->username, $this->password);
            if ($login_result) {
                $this->disconnect();
                return true;
            }
        }
        // We need to disconnect regardless of whether the login succeeded
        $this->disconnect();
        return false;
    }

    /**
     * Connect to a POP3 server.
     * @access public
     * @param string $host
     * @param bool|int $port
     * @param integer $tval
     * @return boolean
     */
    public function connect($host, $port = false, $tval = 30)
    {
        //  Are we already connected?
        if ($this->connected) {
            return true;
        }

        //On Windows this will raise a PHP Warning error if the hostname doesn't exist.
        //Rather than suppress it with @fsockopen, capture it cleanly instead
        set_error_handler(array($this, 'catchWarning'));

        //  connect to the POP3 server
        $this->pop_conn = fsockopen(
            $host, //  POP3 Host
            $port, //  Port #
            $errno, //  Error Number
            $errstr, //  Error Message
            $tval
        ); //  Timeout (seconds)
        //  Restore the error handler
        restore_error_handler();
        //  Does the Error Log now contain anything?
        if ($this->error && $this->do_debug >= 1) {
            $this->displayErrors();
        }
        //  Did we connect?
        if ($this->pop_conn == false) {
            //  It would appear not...
            $this->error = array(
                'error' => "Failed to connect to server $host on port $port",
                'errno' => $errno,
                'errstr' => $errstr
            );
            if ($this->do_debug >= 1) {
                $this->displayErrors();
            }
            return false;
        }

        //  Increase the stream time-out
        //  Check for PHP 4.3.0 or later
        if (version_compare(phpversion(), '5.0.0', 'ge')) {
            stream_set_timeout($this->pop_conn, $tval, 0);
        } else {
            //  Does not work on Windows
            if (substr(PHP_OS, 0, 3) !== 'WIN') {
                socket_set_timeout($this->pop_conn, $tval, 0);
            }
        }

        //  Get the POP3 server response
        $pop3_response = $this->getResponse();
        //  Check for the +OK
        if ($this->checkResponse($pop3_response)) {
            //  The connection is established and the POP3 server is talking
            $this->connected = true;
            return true;
        }
        return false;
    }

    /**
     * Log in to the POP3 server.
     * Does not support APOP (RFC 2828, 4949).
     * @access public
     * @param string $username
     * @param string $password
     * @return boolean
     */
    public function login($username = '', $password = '')
    {
        if ($this->connected == false) {
            $this->error = 'Not connected to POP3 server';

            if ($this->do_debug >= 1) {
                $this->displayErrors();
            }
        }
        if (empty($username)) {
            $username = $this->username;
        }
        if (empty($password)) {
            $password = $this->password;
        }

        // Send the Username
        $this->sendString("USER $username" . self::CRLF);
        $pop3_response = $this->getResponse();
        if ($this->checkResponse($pop3_response)) {
            // Send the Password
            $this->sendString("PASS $password" . self::CRLF);
            $pop3_response = $this->getResponse();
            if ($this->checkResponse($pop3_response)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Disconnect from the POP3 server.
     * @access public
     */
    public function disconnect()
    {
        $this->sendString('QUIT');
        //The QUIT command may cause the daemon to exit, which will kill our connection
        //So ignore errors here
        @fclose($this->pop_conn);
    }

    /**
     * Get a response from the POP3 server.
     * $size is the maximum number of bytes to retrieve
     * @param integer $size
     * @return string
     * @access private
     */
    private function getResponse($size = 128)
    {
        $response = fgets($this->pop_conn, $size);
        if ($this->do_debug >= 1) {
            echo "Server -> Client: $response";
        }
        return $response;
    }

    /**
     * Send raw data to the POP3 server.
     * @param string $string
     * @return integer
     * @access private
     */
    private function sendString($string)
    {
        if ($this->pop_conn) {
            if ($this->do_debug >= 2) { //Show client messages when debug >= 2
                echo "Client -> Server: $string";
            }
            return fwrite($this->pop_conn, $string, strlen($string));
        }
        return 0;
    }

    /**
     * Checks the POP3 server response.
     * Looks for for +OK or -ERR.
     * @param string $string
     * @return boolean
     * @access private
     */
    private function checkResponse($string)
    {
        if (substr($string, 0, 3) !== '+OK') {
            $this->error = array(
                'error' => "Server reported an error: $string",
                'errno' => 0,
                'errstr' => ''
            );
            if ($this->do_debug >= 1) {
                $this->displayErrors();
            }
            return false;
        } else {
            return true;
        }
    }

    /**
     * Display errors if debug is enabled.
     * @access private
     */
    private function displayErrors()
    {
        echo '<pre>';
        foreach ($this->error as $single_error) {
            print_r($single_error);
        }
        echo '</pre>';
    }

    /**
     * POP3 connection error handler.
     * @param integer $errno
     * @param string $errstr
     * @param string $errfile
     * @param integer $errline
     * @access private
     */
    private function catchWarning($errno, $errstr, $errfile, $errline)
    {
        $this->error[] = array(
            'error' => "Connecting to the POP3 server raised a PHP warning: ",
            'errno' => $errno,
            'errstr' => $errstr,
            'errfile' => $errfile,
            'errline' => $errline
        );
    }
}